ADTH NextGen TV Box Gen 2 ATSC 3.0 & ATSC 1.0 Digital Converter Box (64GB)
Quick take
The ADTH NextGen TV Box Gen 2 is an over-the-air (OTA) digital converter and receiver that supports both ATSC 3.0 (NextGen TV) and legacy ATSC 1.0, letting you add live broadcast channels to an HDMI TV. It includes 64GB of built-in storage for DVR-style pause, rewind, and replay, and it can output up to 4K HDR on compatible broadcasts. The main caveat is that reception and channel availability depend on your local antenna signal quality, and some buyers mention occasional lockups or brief freezes.
Pros and cons
Pros
- Dual compatibility: ATSC 3.0 (NextGen TV) and ATSC 1.0 in one box.
- OTA DVR features with included 64GB built-in storage for time-shifted viewing.
- Up to 4K HDR output for compatible NextGen TV broadcasts.
- Includes Wi-Fi and Bluetooth for guide data and firmware updates.
Cons
- Performance varies with signal conditions and local station ATSC 3.0 strength.
- Some buyers report the unit can occasionally lock up or freeze briefly.
- Channel list behavior and ordering between ATSC 3.0 and ATSC 1.0 can be confusing for some setups.
What buyers think
Buyer-review evidence is mixed but generally centered on practical OTA reception and interface behavior. Several buyers report they can use the box to regain or improve reception for specific NextGen TV stations, and they note clearer, brighter picture on compatible broadcasts. Others say the setup works well enough to scan and access a larger set of channels, including scenarios where they previously struggled with weaker ATSC links. On the downside, review evidence includes reports of occasional freezes or resets to a logo screen, and some users find the channel listing (ATSC 3.0 versus ATSC 1.0) less straightforward than they expected.
What this is, and who it’s for
The ADTH NextGen TV Box Gen 2 is designed for households that want over-the-air broadcast TV on a TV that uses HDMI, without relying on cable or a streaming subscription. It is particularly relevant if you want access to NextGen TV (ATSC 3.0) where available, while keeping compatibility with older ATSC 1.0 broadcasts.
Best for
- People adding OTA TV to an HDMI TV (including older TVs that need an external tuner box).
- Cord cutters who want local channels, including NextGen TV where your area supports it.
- Buyers who want DVR convenience for live OTA viewing (pause, rewind, replay) without extra recording gear.
- Households willing to use an antenna (OTA reception depends on your signal).
Consider before buying
- If your area has weak or inconsistent ATSC 3.0 signals, you may see limited NextGen TV channels or rely more on ATSC 1.0.
- If you prefer a highly stable “set it and forget it” experience, note that some buyers report occasional freezes or lockups.
- If you want a very simple channel organization and are sensitive to how ATSC 3.0 and ATSC 1.0 appear in the list, be prepared for some quirks.
Key features that matter day to day
ATSC 3.0 plus ATSC 1.0, one connected setup
This box supports both ATSC 3.0 (NextGen TV) and ATSC 1.0, which is helpful because channel lineups and encoding can vary by market. Practically, it means you are not forced to choose between newer and older broadcast standards.
4K HDR output, but only when your broadcast supports it
It supports up to 4K resolution with HDR output for compatible NextGen TV broadcasts. If your local stations are not broadcasting in that format, you will not benefit from the HDR and higher resolution features in the same way.
64GB built-in DVR recording and time-shift controls
The included 64GB storage is intended to make DVR use immediate, enabling pause, rewind, and replay functionality for live OTA programming. If you want more recording capacity, you can connect external storage using USB flash drive or microSD card (sold separately).
Audio support for modern formats
It is compatible with Dolby Digital Plus and AC-4 audio formats for clearer dialogue and immersive sound when your TV or audio system supports those formats.
Connectivity for updates and a fuller guide experience
Dual-band Wi-Fi and Bluetooth are included. Wi-Fi can help with guide and firmware updates, while Bluetooth supports additional device interactions depending on your setup. You still need an antenna connection for the broadcast signal itself.
Setup overview (and what to double-check)
Plan on connecting the box to your TV via HDMI, and connecting your antenna to the coax input. The guided on-screen channel scanning is intended to simplify tuning. After scanning, pay attention to how your market’s ATSC 3.0 versus ATSC 1.0 channels appear, since some listings can be harder to differentiate. If you are chasing specific NextGen TV stations, reception quality is a major factor, so antenna placement and signal strength can make a noticeable difference.
Pros and cons recap
- Go for it if you want a single OTA tuner that covers both ATSC 3.0 and ATSC 1.0, plus built-in DVR storage for time-shift viewing.
- Skip or rethink if you expect flawless stability in every market, or if your primary goal is highly predictable channel organization across standards.
- Match expectations around 4K HDR, since it depends on what your local NextGen broadcasts actually deliver.
Verdict
The ADTH NextGen TV Box Gen 2 is a practical option for OTA viewers who want NextGen TV coverage alongside legacy ATSC compatibility, and who value DVR-style pause and replay without buying extra storage right away. It can perform strongly when your local antenna signal supports ATSC 3.0, but OTA reception realities and occasional reported lockups mean it is best suited to buyers who are comfortable dialing in an antenna and troubleshooting minor interface quirks.
Price and availability
Check current pricing and stock status before ordering: Buy on Amazon.
Alternatives to consider
If you are comparing within the OTA converter space, focus on these decision points rather than brand names: dual ATSC 3.0 and ATSC 1.0 support (if you want NextGen now and compatibility later), built-in versus add-on storage for DVR, and whether you can connect your antenna and antenna quality is adequate for ATSC 3.0 in your area. If built-in DVR is not a priority, you may find simpler OTA tuners with fewer features, but you would be trading away recording convenience.
FAQ
Does the ADTH nextgen TV box gen 2 need an antenna?
Yes. It is an over-the-air tuner, so you need to connect a TV antenna to receive broadcast channels.
What is the difference between ATSC 3.0 and ATSC 1.0 on this box?
ATSC 3.0 is NextGen TV, which is where you may find support for 4K HDR broadcasts where available. ATSC 1.0 is the legacy standard, which the box can also receive for broader compatibility.
Can it record over-the-air TV (DVR)?
Yes. It includes 64GB of built-in storage intended for DVR recording and time-shift features such as pause, rewind, and replay. You can also expand recording capacity with external storage (USB flash drive or microSD card, sold separately).
Do I need Wi-Fi to watch TV?
No. Wi-Fi is primarily for guide data and firmware updates, but the OTA signal comes from your antenna connection.
Will it output 4K HDR on every channel?
No. The box supports up to 4K HDR output for compatible NextGen TV broadcasts, but what you actually get depends on your local stations’ broadcast formats.
Is dolby digital plus or AC-4 supported?
Yes, it supports Dolby Digital Plus and AC-4 audio when supported by your TV or audio system.
Specifications
| Product Title | ADTH NextGen TV Box Gen 2 ATSC 3.0 & ATSC 1.0 Digital Converter Box | 64GB Built-in Storage | Over-the-Air TV Tuner & Receiver | 4K HDR | Wi-Fi & Bluetooth | Built-in DVR Recording |
|---|---|
| Category | Electronics > Television & Video > Analog-to-Digital (DTV) Converters |
| Brand | ADTH |
| Manufacturer | ADTH |
| Compatible Devices | Television |
| Connector Type | HDMI |
| Connectivity Technology | HDMI, Coaxial |
| AntennaDescription | Television |
| Tuner Type | ATSC |
| UPC | 860011504023 |
| Mfr Part Number | ADTHNXTVBOXG2-64G |
| Unit Count | 1.0 Count |
| Built-In Media | TV Box, Remote Control, HDMI Cable, Power Adapter, User Manual |
| Antenna | Television |
Available variants
Size
- 64 GB
- 8 GB
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