Its 20 hrs!? …
And you probably can’t skip commercials, which defeats the whole purpose of using a DVR. Advertisers love this shift from Cable/Sat to streaming.
As expected, the YouTube app disappeared from Fire TV over New Year’s. But exactly as @stusser said, all I had to do was load Firefox instead and load up YouTube. Boom, functionality restored. I suppose Google got some press from their app removal announcement, but that appears to be the only real effect.
I recommend sideloading this app instead. It also blocks their ads, because fuck them.