Can you stream AT&T WatchTV on Windows?
How to Sign Up for AT&T WatchTV on Other Streaming Devices
If you have other devices, you can learn how to sign up for and use AT&T WatchTV on Amazon Fire TV, Apple TV, Google Chromecast, Android TV, iPhone/iPad, Android Phone/Tablet, Mac, LG Smart TV, Samsung Smart TV, Sony Smart TV, and VIZIO Smart TV.
What features are available on AT&T WatchTV?
No Cloud DVR
Unfortunately, it does not appear that AT&T WatchTV includes a DVR.
There is a variety of on demand content to stream within the AT&T WatchTV app.