What series was Larry Hagman offered the same year he was offered “Dallas” (CBS, 1978-91)?

Larry Hagman was offered “The Waverly Wonders” (NBC, 1978), a sitcom about a high school basketball coach (starring Joe Namath) the same year he was offered “Dallas” (CBS, 1978-91).

Hagman favored this series, which lasted one month; but his wife advised him to take “Dallas.”