Wait! What was that? On last night’s “Curb Your Enthusiasm,” fans of “Seinfeld” learn something rather unexpected: eleven years after the show went off the show, Jerry and Elaine have a child together. It’s a daughter, named Isabelle.

Jerry reveals during the fake “Seinfeld” reunion that he “donated the sperm” to create this child. Now she calls him “Uncle Jerry” and he doesn’t like it.

Not only that: in the nearly dozen years since we last saw them, not much has happened to the “Seinfeld” gang. Jerry and Kramer still live across the hall from each other. Newman is still in the building. Elaine has the child. And George, of course, has remarried, and divorced again.

In fact, George has lost about two million dollars to Bernie Madoff after creating an “app” for the IPhone called IToilet, which finds the closest public bathroom. His ex, Cheryl, played by Cheryl Hines, who is Larry David’s fictional ex in the “Curb” series, then reveals she got her all money back from Madoff and lost nothing. She ran into him in the street and thought he looked “creepy.” Now George is trying to woo her back to get his money.

The fake “Seinfeld” reunion is the closest we’re going to get to a real “Seinfeld” reunion, and it’s brilliant. Conducted on “Curb,” it’s fictional Larry’s way of getting Cheryl to come back to him ‘ by letting her play George’s ex. As Julia Louis Dreyfus and Jason Alexander both say to Larry, “I didn’t know she was an actress.” Larry can’t even come up with a credit for Cheryl, although old “Curb” fans may recall she had a part in “The Vagina Monologues” years ago.

Last night’s episode poked fun, too, at Michael Richards‘ (Kramer’s) famous racist outburst. Michael Richards also fears that he may have Groat’s Disease ‘ which isn’t real, but was described in the second season of “Curb” as something to do with hyperactivity. Featured in the show were the characters of Newman and unsuccessful comic Kenny Banya. George’s mom was seen at the read-through for the reunion script, but there was no sign of his dad (Jerry Stiller).

Next week is the season finale for “Curb,” which will feature the “Seinfeld” reunion and maybe Larry and Cheryl’s as well. In the meantime, last night’s episode was really brilliant, combining elements from both shows. Of course, “Seinfeld” was squeaky clean and “Curb,” because it’s on cable, can be filthy. And so it was, with a joke that scandalized Jerry, and a running motif that could never be used in broadcast repeats about Larry and a nine year-old female pen pal. I think that’s why the show ran long last night, so those bits can be edited out later. The syndicated version of this episode will have to be stitched back together. But oh ‘ if you have HBO, the original is laugh out loud hilarious.

By the way, regarding the casting of Cheryl as George’s ex: Jason Alexander told me last night at the premiere of “Ragtime” he would have preferred Kristin Chenoweth. Or rather, George would have preferred her. And Meg Ryan? “Definitely not.” said Jason. Who they missed entirely: Marisa Tomei, with whom George was once obsessed.

David Lloyd, the great TV comedy writer whose scripts included “Chuckles Bites the Dust,” has passed away. According to the Internet Movie Data Base, Lloyd worked on 33 episodes of “The Mary Tyler Moore Show” as either the sole writer or executive story editor. His many solo installments included one of my favorites, in which Mary tries to throw a surprise birthday party for Lou Grant in her apartment.

Some of his other “MTM” classics included the shows with Eileen Heckart as Mary’s Aunt Flo, a career journalist who was Lou Grant’s match, and ones in which Lou helps Mary overcome sleeping pills to get some rest, Lou’s affair with Sue Anne Nivens and one in which Murray thinks he’s in love with Mary.’ I can remember as a teenager always waiting to see David Lloyd’s name on the MTM show credit because you knew it would be a good one.

Altogether, Lloyd seemed to carry the MTM stable of shows. He wrote for all of them: “Lou Grant,” “Rhoda” and “Phyllis.” He also wrote for “The Betty White Show.” He also wrote for “Cheers,” “Taxi” and “Frasier,” the latter where his son Christopher Lloyd was bylined. The result was 3 Emmy Awards. He also wrote one of the best “Cheers” episodes, in which the bar gang has to cater Woody’s wedding.

James L. Brooks, the co-creator of “The Mary Tyler Moore Show” and “Taxi” told me on Wednesday: “David was the perfect TV comedy writer. He wrote so much. You knew if he agreed to do your show, you had half the season.” Brooks said Lloyd especially liked writing for Betty White, who played Sue Anne, the nymphomaniac precursor to Rachel Ray. “He had a great laugh,” Brooks recalled. “But he also didn’t use an agent. He did his own negotiating, which unnerved everyone.” Lloyd, he said, often also did warm-ups for the shows.

Before he got into sitcoms Lloyd wrote hundreds of shows for Jack Paar, Johnny Carson and Dick Cavett, honing his comedy talents. By far, though, “Chuckles Bites the Dust“ is Lloyd’s most famous TV episode, and is still considered the benchmark for writing of any kind. Lloyd won many awards for the script which included two recitations of Chuckles’ signature line: “A little song, a little dance, a little seltzer down your pants.”

Brooks says that when the episode was played at Cannes at a TV convention, no one — especially the French — understood it. “We were all there. No one laughed. The only people laughing were us. We were on the floor laughing.”

For more on David Lloyd, see his friend and colleague Ken Levine’s posting.