Crivens! A CRT TV?
It might just be that it needs degaussing. Seriously though, think about getting a nice 40 inch LCD set (or if you can run to it, a QLED or even OLED one).
Over the years you'll save money with reduced power consumption and future proof yourself.
If you're in the UK, see if there's a branch of Richer Sounds near you. Competitive pricing and the chance of a no-cost 5 year guarantee.
Djfjf
April 2022