http://cgi.ebay.com/Vintage-Magnavox...#ht_500wt_1156
It's looks to be from around 1976-1977 or so and in very good working order. Pretty cheap for its condition.
http://cgi.ebay.com/GE-GENERAL-ELECT...e#ht_500wt_922
Very expensive, especially for a 1970's set.
http://cgi.ebay.com/SONY-Vintage-KV-...#ht_604wt_1141
Looks to be mid-1970's. Very decent price considering its condition.
http://cgi.ebay.com/Vintage-Toshiba-...#ht_500wt_1156
This Toshiba is being sold not too far from my house. It picks up decent reception with a broken antenna.
http://cgi.ebay.com/Vintage-Zenith-B...#ht_500wt_1156
There's something unusual to me about this set: The channel lights stay on even though the TV itself is off.
http://cgi.ebay.com/Panasonic-Portab...#ht_500wt_1156
Manufactured in September 1982.
And some Craigslist sets:
http://chicago.craigslist.org/nwc/ele/2179925333.html
Two console TV's for sale.
http://chicago.craigslist.org/nwc/ele/2186915228.html
This set has been posted on Craigslist before. Last time, it was posted, the seller mentioned that it was manufactured in 1977.