Tuesday was a big night for Oxygen as part one of the “Bad Girls Club” reunion was the most-watched telecast in Oxygen history in total viewers as 2.6 million tuned in.Bad-girls-club

In the 18-34 demo — clearly the NBC Universal cabler’s sweet spot — “Bad Girls” beat all cable and broadcast nets in adults 18-34 with a 1.85 rating. And it would’ve been the top 18-34 female show if not for “American Idol” and “Lost.”

At 11 p.m., “Love Games: Bad Girls Need Love Too” was Oxygen’s highest series premiere ever among in adults 18-49, adults 18-34 and total viewers (1.51 million).