After the NCR defeats the legion at the damn, anything is possible bro. As lOng as you take care of the loose ends; Great Khans, save BoS, put the right power in Gommorah, Kill Caesar, get followers aid.
Wait wait wait....Save the Brotherhood? That is a "peaceful" thing to do? You have got to be kidding me. They'd probably take away the tv's just because they could be made into superweapons or some stupid [censored] like that.
Anyways enough ripping, if they could incorperate tv into the game that would be really cool, I mean rockstar did it and really well at that. Although the Tv would have to be retro re-runs or maybe even some new stuff if they gave it a good enough backstory for beeing so.