VIDEO: Mark Harmon & Jay Leno Surprise Each Other w/ 'Laverne & Shirley' Clips

On last night's THE TONIGHT SHOW on NBC, Mark Harmon and Jay Leno surprised each other with clips featuring appearances they both made on the 1970's TV show Laverne and Shirley. Later, Harmon talks about the continued success of "NCIS".

Watch clips from last night's appearance below!

"The Tonight Show with Jay Leno" features a nightly monologue (the longest in late night), news-making guests, and ongoing comedy segments, including "Headlines," "Jaywalking" and "Battle of Jaywalking All-Stars." The result is a unique and humorous look at the daily happenings in the news and in pop culture.

The program is also a proven barometer of political clout. In 2009, the show made HISTORY by being the first late-night show to host a sitting president when Jay Leno welcomed President Barack Obama as a guest.

"The Tonight Show with Jay Leno" is from Big Dog Productions in association with Universal Television. Debbie Vickers is the executive producer.

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