On January 22nd 1968 "Rowan & Martin's Laugh-In", hosted by Dan Rowan and Dick Martin, premiered on NBC. 

The show helped to launch the careers of Ruth Buzzi, Judy Carne, Arte Johnson,Henry Gibson, Goldie Hawn, The Very Classy Gary Owens, Lily omlin, and Joanne Worley, among many others!

Here are a few CLASSIC clips from the show:

Watch for John Wayne's poem around the :50 mark in this clip:

The Monkees stopped by to help out with the closing credits once:

A few quick jokes:

And the most famous line from the show: