Conversation so far:
What timeslot did Leno have?
Leno started a primetime talk show, titled The Jay Leno Show, which aired weeknights at 10:00pm ET.
Why was the Jay Leno Show moved?
Multiple media outlets reported that beginning March 1, 2010, Jay Leno would move his 10 p.m. weeknight time slot to 11:35 p.m., due to both Leno's and O'Brien's poor ratings.
Did the timeslot change for The Jay Leno Show help or hurt ratings?
On July 1, 2010, Variety reported that total viewership for Jay Leno's Tonight Show had dropped from 5 million to 4 million for the second quarter of 2010
Did Jay Leno win any awards?
Jay Leno has won many awards including the Mark Twain Prize for American Humor

Question: How long was he away from the tonight show?
Self-contained rewrite: How long was Jay Leno away from the tonight show?