When I previewed rough-cut pilot of The Class (premieres Monday, Sept. 18 at 8 PM ET) back in June, I had my doubts about whether the loose association of the characters in the show would be able to withstand the rigors of a long-term series. The finished pilot didn't change my mind. But CBS was nice enough to include the second episode on the same screener as the pilot, and I'll tell you this: the show has potential. It seems an especially good companion for How I Met Your Mother, which it will preceed on Mondays, since both cater to the same late-20s crowd. But The Class does so without the cutsiness that can sometimes seep into HIMYM.