This is a red 13" Sony Trinitron TV/monitor from the late 1980s, model KV-1397R. The red paint is original. I demonstrate it with both off-air UHF TV via the rabbit ears (this video was recorded in 2008 when analog TV was still in use), and composite video input from my laptop. I got it at Goodwill for $9.99.
It is not stereo, but the single built-in speaker sounds very good for its size. Unfortunately I didn't get the original remote or rabbit ears with it. Finding a matching red remote will probably be very difficult!
(Originally uploaded to YouTube, September 1st, 2008)