It was a mini Saved By The Bell reunion on the Ellen Degeneres show when Mario Lopez guest hosted with Tiffani Thiessen as his guest.

"OMG I can't believe I am that old," exclaims the 44-year-old Lopez. Thiessen agrees, "We are old, we are really old!"

Their reasoning behind not knowing SBTB is 30? Being parents! Which led to a conversation about whether their kids watch the reruns. Turns out, they have!

“My kids have given it a shot and [they’re] not feeling it,” Lopez says. They even teased him a bit, he says, asking him, "Daddy why is your hair like that?”

Theissen's daughter Harper, who is 8, loves the show. She has been cut off at season 1 since after that the "kissing started." As for the hair, well it seems Harper has a thing for both Lopez (and come one, who doesn't love those dimples!) and co-star Mark-Paul Gosselaar (also total eye candy).

"She's boy crazy already!"

Catch the full exchange below! Then tell us who your favorite Saved By The Bell cast member was!