Welcome!
Websites I can recommend - V-K (of course), Phil's Old Radios, Antique Radio Forums (has a TV subforum)
Videos - check out Bob Andersen's Youtube channel - he posts all kinds of good informative stuff -
https://www.youtube.com/user/bandersentv
And don't forget to ask! No stoopid questions here - ask anything non-political and you're probably good with the moderators.
Cheers,