Jason Alexander is mainly known for starring in Seinfeld, but he also kicked off his directing career by helming an episode of the beloved sitcom.

Jerry Seinfeld himself acknowledges that Season 3's "The Alternate Side" was the most uncomfortable episode of Seinfeld.

Well, it came when Jerry Seinfeld released a promotional clip of his film Unfrosted, which is also his first shot in the ...

Festivus is a wacky holiday popularized in a 1997 “Seinfeld” episode. Billed as “Festivus for the rest of us,” the holiday is celebrated by the Costanza clan on Dec. 23 as an all-inclusive ...

Festivus was the brainchild of Seinfeld writer Dan O'Keefe ... One tradition that didn't make it to the episode however was O'Keefe's father putting a clock in a bag and nailing it to a wall.

McMonigle was hosting his nightly show when his producer took a jab at Seinfeld. The Producer boldly claimed that the show had "only three episodes." Then the phone rang. Sure enough ...