I have noticed on a ROKU Smart TV that the streaming channels available there are greater in number (by far) to what I can get in TV Everywhere via my DirecTV login. Is there a way to expand my TV Everywhere streaming line up beyond my current (relatively limited) TVE lineup that shows via DirecTV? On a similar topic, I can login to my DirecTV through either a ROKU or FireTV device and also get almost all of my normal DirecTV channels. Why the difference?
Welcome to the Channels community! 
For Roku live TV in Channels DVR, I don't have it myself but there is this old thread that may help:
Regarding TV Everywhere and the lower number of channels available compared to your DirecTV package, this is due to the agreements that DirecTV has with the networks. Other TV providers (cable, satellite, streaming) have different agreements with the networks and may offer different TV Everywhere channels.
If you are interested in expanding the list of channels in your DVR, take a look at this thread:
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