Eight Is Enough (1977)
S4E3 I Do, I Do, I Do, I Do
David and Janet finalize their wedding date, only to discover it coincides with the new date Merle and Susan chose to accommodate Merle's baseball career transition. Meanwhile, Nancy lands a gig delivering singing telegrams and is tasked with performing at the simultaneous wedding celebration for both couples, David and Janet, along with Merle and Susan.