Mid-'60s Zenith Console Doesn't Turn On

[Jemascola]

I have a Zenith All-Channel console TV from the mid-60s (Model 8320, chassis 25MC36). It originally came from my grandma's house, but I got it almost two years ago when we cleared out her house to get it ready to sell.

Aside from some picture quality issues, it turned on fine until after I brought it home. The TV simply wouldn't turn on. The vacuum tubes didn't light up, nor did I hear any kind of hum from the TV. There were a few times I got it to turn on, but over the last year, I haven't had any luck.

My concern is that maybe something in the TV got damaged from being bumped around while transporting it home. Interestingly enough, though, I used to have a GE Porta-color that had the same exact problem. Has anyone else experienced this with these old tube TVs, and if so, what could be the problem?

Thanks in advance.