Brit's mom is talking about VH1's series called "I Love the 70's, 80's, and 90's." (Not to be confused with "That 70's Show.") Every year is one hour long, and celebrities make witty comments and talk about memorable things from that time, such as fads, movies, news, etc.
It's a really fun little show, and totally addicting. I bet I've seen every episode at least 3 or 4 times, no joke. One time last summer, I watched a 10 hour marathon.
Brit's mom, I think you're thinking of
Michael Ian Black or
Hal Sparks or Mo Rocca. All three are totally funny.