sanyo hasn't made tvs since the early 2000. They were purchased by panasonic which also stopped making tvs. They were later bought out by chinese companies trying to cash in on the name brand. Do no buy any tvs from the legacy old namebrands.
There are some decent "cheap" namebrands popping up. Vizio, TLC, and hisense are pretty solid mid performers that usually punch above their price point. Sony has gotten a resurgence in the past few years as they rebuilt their consumer electronics divisions. Their current line of OLED are the best on the market right now.
I recently purchased a hisense 65" for work and it is a great tv for 350 bucks. I liked it so much that I bought a 65" u8h for my game room to replace a gaming tv. I wanted something with VRR to match the ps5. So far it has exceeded all my expectations for a cheaper mid/low end brand. If I was replacing my tv in the living room, and wanted something fancy, I'd be looking at LG or Sony very closely. But black friday is usually not the time to buy flagship tv models.