Larry David's Curb Your Enthusiasm is a stronger, more potent espresso to Seinfeld's coffee. Written only in outline form, the actors take a few key items or phrases and ad-lib the rest, giving the show a very real feeling. Wife Cheryl (Cheryl Hines), manager Jeff (Jeff Garlin), and Jeff's foul-mouthed wife Susie (Susie Essman) come along for the ride as we get a sneak peak into what it's like to live as Larry David, and envy not being him as much as we might envy being him.
Much of the clever, biting humor revolves around Larry's distaste for confining social mores, be it chatting with acquaintances on the street (he hates the "stop-n-chat"), following the rules of someone else's house (he won't remove his shoes), or simply singing "Happy Birthday" (he refuses to). His refusal to conform to nearly any situation, no matter how "in the right" he may actually be, always makes him look unbelievably bad. Even better, when he tries to do nice things, life seems to punish him even more. Writing an obituary for a relative and buying a gift for a surrogate mother both caused no end of difficulty for Larry.
Differing a bit from Seinfeld is the inclusion of some continuing plot threads. Seasons 1 and 2 saw some arcs revolving around former Seinfeld cast mates, and seasons 3 and 4 followed season-long arcs, the opening of a restaurant and Larry's starring role in Mel Brooks' The Producers. The show also moves at a slower pace, not rushing to get to the next joke, and the lack of commercials lets the show "flow" much more naturally.
The show is sprinkled with friends like the always excellent Richard Lewis and Wanda Sykes. While he alternately is in cahoots with Richard or accidentally offending him, Wanda constantly "catches" Larry in perceived ill circumstances. Neither is on the show long enough to wear out their welcome, and both are always fantastic when they are.
If you are not a fan of Seinfeld, stay away from this show: it's not for you. If you are, and are interested in seeing how it might have looked on HBO, give this show a try. It's well worth your while and will leave you laughing constantly.