Advertisements B Positive, a new sitcom on CBS. Airing as part of the Thursday night lineup (Young Sheldon, Mom, etc), created by Marco Pennette, who is part of the Chuck Lorre production family. Usual rules, don't post spoilers before the episode airs. Individual threads are always welcome, but this gives us a place to discuss it as the season progresses. This is the only new sitcom from CBS this fall season.