channelling Freud: (with thick Austrian accent) "sometimes a TV is just a TV"
On the other hand, what could be further lonelier out in the plains than a trailer with a TV, NO CABLE, maybe it doesn't get a good signal, it could even be broken. I can just picture Ennis sitting in front of it like he was in the family scene, with a few empty beer cans lying around watching TV by himself until he gets so tired he stumbles somewhat into be after waking up with a start realizing he fell asleep again in his chair.
That sound lonely enough? I could go on but.....enjoy Mexico. Play safe. Buy a T-shirt. I wear a medium. hint hint