Well, as long as we're free to fantasize...
I wish I could re-see every episode of every game show I ever saw.
They would include that episode of "Eye Guess" in which a contestant was asked by Bill Cullen, "What do you call a person who runs for political office?" and the contestant picked a number, and up came, "A NUT."
Episodes of "PDQ," especially the week that Don Adams and Barbara Feldon made up the home team while "Get Smart!" was still going strong. Also the episodes in which the celebrities were all game show hosts: Peter Marshall, Monty Hall and Tom Kennedy. (Dennis James, of course, was the regular host.)
A 1960s oddity called "Seven Keys" with a towering board of lighted panels that reached all the way up to 100.
Episodes of the original "Match Game" on NBC. I seem to recall a week of shows with Liza Minnelli and Milton Berle. (On that version, when people finished scrawling their answers on cards, they were supposed to raise their hand; I remember Berle raising both hands, prompting my 6-year-old self to exclaim, "What a silly man!") And then there was the time writer Dick DeBartolo skipped out to mug for the camera.
An episode of "Let's Make a Deal" on NBC in which Monty Hall picked a handsome, well-dressed woman who wasn't wearing an outlandish costume, and didn't have anything to "trade" - so she gave up her shoes, and ended up winning them back as a zonk.
Practically all of the above, I'm certain, no longer exists. Something which I'm pretty sure exists, and which I'd love to have a copy of, was Maria von Trapp's appearance on the syndicated "What's My Line?" (She walked out wearing an Austrian costume and signed in as "Miss X." A perplexed Arlene Francis asked if her claim to fame was some kind of accomplishment - "Did you fly over the ocean? Did you climb a mountain?" And host Larry Blyden burst into laughter.)