More than 600 revelers attended NBC’s Television Critics Assn. press tour party Friday night at the Athenaeum faculty building on the Caltech campus.

While established Peacock stars like Amy Poehler showed up, those newer to the NBC fold — David Guintoli (“Grimm”), Maya Rudolph (“Up All Night”), Jessica Simpson (“Fashion Star”) and Katharine McPhee (“Smash”) — were eager to shake hands as well.

At Sunday night’s Fox party at Castle Green, one of the thesps to gather a crowd was Charlie Sheen. The former “Two and a Half Men” star will topline the upcoming FX series “Anger Management.” – — Stuart Levine