The way the press release is written, almost all of these series are number 1 in their time slot or on their night (TAR has generally been number one at their hour, and at worse, second on Sundays. I think its clearly implied that season 22 for next spring is all but a formal greenlight. I've never seen CBS renew most of their schedule in one swoop like this two months before the upfronts, and that's part of my reasoning why I think beth cycles have been cleared. (In fact CBS is rarely the first network to do this, and they are the first of the five (ABC, NBC, FOX, and the CW) this year.