The store I was at was having a "closeout" sale on all of their TVs; they even had an '80s Magnavox console for only 25 bucks. The most expensive TV I looked at was $10, because I didn't feel like putting more into an unknown set.
I'm glad to hear about the Sylvania and MGM because those were my two favorite sets. I know its crazy for a young guy like me to want a tube, but believe it or not a 19" widescreen would not fit as well as a 13" tube set in the space that I have.
That, and I love the look of "proper" TVs!
Thanks for your suggestions; I'll probably grab the Sylvania or MGM (or both!), but if you have any other recommendations that I didn't list, I'd be more than happy to hear them!