The blogs are comparing this to Letterman, but it's a bit different imo since Kimmel isn't having an affair.

After the break-up with his girlfriend of 5 years Sarah Silverman earlier this year, Jimmy Kimmel has found love again - with an employee!!!

 

The late night host has been dating Molly McNearey, a longtime staffer on his show, for several months!

 

"After Jimmy and Sarah broke up, Molly and Jimmy both found themselves single, and they clicked," claims a source. "They're really happy together."

...

http://perezhilton.com/2009-10-12-kimmel-inspired-by-letterman-hes-effing-a-staffer