NCIS
CBS, 8:00 p.m. ET
SEASON FINALE: Pauley Perrette, one of the founding cast members of NCIS, made her final appearance as Abby on this series earlier this month – but today’s episode is noteworthy anyway, because it marks the end of 15 seasons for a show that is itself a spinoff of another series, JAG. To say that no one expected NCIS to last this long, or succeed this much, is not an insult, but a fact. Yet here it is, and next season, it, and series star Mark Harmon, will still be here…