Koplitz was host of Telepictures' nationally syndicated dating show Change of Heart, guest host on NBC's Later, co-host of the Food Network's How to Boil Water, and co-host of Sony Pictures syndicated talk show Life and Style.
[1][2] Koplitz earned a BA in theatre arts from Troy State University where she was a member of the Iota Kappa Chapter of Chi Omega in 1989.
She performed for a regional theater group in Knoxville, Tennessee, before moving to New York City.
Koplitz was featured in a series of advertisements for her alma mater, Troy University.
In 2009, she co-hosted the inaugural broadcast of the StarTalk podcast, along with well-known astrophysicist Dr. Neil deGrasse Tyson.