TV alerts: Melanie Lynskey on “Two and a Half Men,” plus the debut of “Samantha Who?”

Tonight on ABC, Christina Applegate‘s new series Samantha Who? premieres. Time Out New York calls it “easily the best new sitcom of the fall crop, though there’s an extent to which that’s damnation with faint praise.” I feel like I’ve heard almost nothing about this show, but it might be worth a look, especially with costars like Jean Smart, Jennifer Esposito and Melissa McCarthy (Gilmore Girls).

Over on CBS, Melanie Lynskey (But I’m a Cheerleader, Heavenly Creatures) guest stars on Two and a Half Men, which should really be called Two Hotties when Lynskey and Holland Taylor show up.