12/21/2011 01:17 am ET Updated Feb 19, 2012

'Anderson': Jane Fonda Brings A Fitness Flash Mob To The Set (VIDEO)

Jane Fonda started a fitness revolution throughout the 1980s and early 1990s. Now, at 73 years old, she's back to it, this time focusing on fitness among seniors. On "Anderson" (Weekdays, syndicated), Fonda started showing one of the exercises she focuses on in her new workout videos, emphasizing the importance of balance for older people.

But a few minutes into it, she decided it was too hard, and she really wasn't dressed appropriately for exercise anyway. "I have some friends here that might show you what to do. Okay?"

With those words, a flash mob erupted on the set, with people running in from all around, and even large portions of the audience getting up and getting involved in the choreographed exercise routine. It was certainly a hip and modern way to bring a sense of fun to fitness, proving that Jane Fonda is just as current today as she was decades ago.

She's keeping busy with more than just exercise as well. Fonda has signed on for a recurring role on Aaron Sorkin's untitled HBO drama series set at a cable news network. Reports have Fonda playing the CEO of the network.

Catch "Anderson" in syndication, weekdays. Check local listings for times and channels.

TV Replay scours the vast television landscape to find the most interesting, amusing, and, on a good day, amazing moments, and delivers them right to your browser.