A spin-off of “National Lampoon’s Vacation” is coming to HBO Max.  It’ll be a half-hour comedy called “The Griswolds”, and it’ll follow the family as they live their lives in suburban Chicago.

It’s being produced by “Roseanne” and “Big Bang Theory” star Johnny Galecki , who played Rusty Griswold in 1989’s “Christmas Vacation”.

There’s no word on casting, so it’s unknown at this point if anyone from the movies will be involved.