If it's older, it's probably smaller, and lower resolution, with higher energy consumption, and less contrast and resolution than today's TVs. Today, you can get a 65-incher for $600. Live a little. The power savings alone might make a new TV worth the purchase!
It is a 46 inch Samsung- 10 years old. We only have room for maybe a 50 inch tops. Checking Consumer reports for another one, it is about $800 actually.
We have DIRECTV, but we only have a basic package- no HBO or any of that- and we do not pay for HD from DIRECTV, though our TV is HD compatible or it is HD or something like that. My husband only watches news and ME TV- all old shows, including some black and white ones. I am not a big TV watcher myself.
When we stream movies from Amazon Prime, though, the pictures look great.