Let's say the companions found television shows from our era. I just kinda thought about the companions and decided what sort of shows they'd be into.
Cait: American Horror Story. It's kinda dark and twisted, but she just loves something about it.
Codsworth: American Pickers, Pawn Stars, Antiques Road Show. The antiques make him nostalgic to better days.
Curie: Grey's Anatomy (though she is very confused by the drama of the operation room because she read it was a very calm and quiet environment), House M.D. She's very much into the doctor shows.
Danse: American Ninja Warrior, wilderness survival shows, anything that's about mankind pushing itself to the physical limit. He likes to believe that be could accomplish most of the feats done by
Deacon: Spy shows. Chuck, Burn Notice, Nikita. Loves 'em.
Hancock: Weeds, Orange Is The New Black.
MacCready: Gotham, Arrow, The Flash, Dare Devil, Agents of S.H.I.E.L.D., etc. In case you forget, he's a NERD!
Nick: CSI, NCIS Castle… All of the detective shows. All of them
Piper: Pretty Little Liars because the truth always comes out and she loves that so much.
Preston: Hardcore Firefly fan. Loves the whole space western thing.
Strong: The Walking Dead. He's usually rooting for the walkers.
X6-88: Dollhouse. The technologies and concepts shown in the show are similar to those of the institute. Its familiar and home-y. Also low-key into Keeping Up With the Kardashians. But, he'd never admit it.