Isn't it nice to have Rizzoli & Isles back in our lives?

The crime-solving duo returned for its winter run last Monday, greeting Bill O'Reilly in the process.

This Monday, meanwhile, another special guest will play a key role on the series. While a dead bank manager is the focus of a police/FBI investigation, look for issues to arise between Jane and Maura due to the latter's relationship with the former's brother, which is getting more hot than ever. Watch the official TNT promo for "He Ain't Heavy, He's My Brother" now.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.