Getting TV and Radio ready for sale

Hey All,

First time on this site! I just recently bought a 1950's house from the original owner who built a 1950's tube tv and radio into the wall. I want to get it ready for sale, problem is that I don't know if it works because the power cord has definitely seen better days and I don't want to fry my gizzard plugging it in. Do you think buyers would be more interested if everything were in it's original condition or if after I monkeyed with it. If it's better with a new chord any suggestions / advice on this?

Thanks! - I attached a picture

Nic