Rich Man, Poor Man (1976)

S9E14 Tiegs for Two

After the dry cleaner misplaces Peter's beloved white shirt, he completely loses his temper. Meanwhile, Brian is eager to impress a new acquaintance named Denise but fails miserably on their date. Rather than giving up on romance, he turns to Quagmire for assistance. However, their friendship takes a turn for the worse when they begin to vie for the attention of each other's former loves, Cheryl Tiegs and Jillian Russell, leading to an escalating rivalry.