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Alyson Hannigan, Alexis Denisof

While Alexis Denisof has appeared on wife Alyson Hannigan’s sitcom “How I Met Your Mother,” fans will tell you that the couple actually met during the 1999-2000 season of “Buffy and the Vampire Slayer.” (She played Willow Rosenberg; he was Wesley Wyndam-Pryce.) In 2003, he popped the question and they tied the knot later that year. “Our single friends have told us that they hope to find the kind of love we have someday,” the actress told Woman’s Day. Sounds like they have something pretty special!

Celebrity Couples Who Met on TV Sets

Lights, camera, love! In between table reads and camera blocking, these TV star twosomes fell head over heels – and are still together.