C.O.
if they are old and working - you might be able to sell them for $50 - not $200.
Try a garage sale and lowering the price. Sorry - but it's "old technology" and if I can get a 52" for $400 from Wal-mart - I won't pay $200 for an old one....
find a collector of old technology...that's another option.
if you can't sell them - donate them. Get the tax write off and donate them and claim the $200.