Elizabeth joined her former on-screen boyfriend Mario for a recording of his US radio show, On With Mario Lopez, before posing in the studio for a photograph.
The pair played high school sweethearts A.C. Slater and Jessie Spano in the 90s TV show and they have kept in touch ever since.
Sharing the picture of them both on Twitter, Mario said: "Loved having my dear friend @ElizBerkley on @onwithmario! Always great to see her & catch up..."
Now 39, Mario co-hosts TV show Extra and the American version of The X Factor. In February, Mario revealed that he and wife Courtney are expecting their second child together.
Meanwhile, Elizabeth, 40, runs her own website and self-esteem programme for teenage girls called Ask-Elizabeth. She also has a son, Sky Cole, with husband Greg Lauren.
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