Polly Holiday in Flo (1980)

The ever lovable Florence Jean "kiss my grits" Castleberry departed Phoenix, Arizona and Mel's Diner in the spring of 1980 and landed in her home town of Fort Worth, or Cowtown, as she called it. There, she bought a run down old road house and proceeded to make a life for herself. That life lasted two seasons and included her mother (Sudie Bond) and her uptight sister (Lucy Lee Flippin) and a whole lotta wacky goings on. This Alice (1976) spinoff had a lot going for it in its first season. It lost it's favorable air time in its second season and plummeted in the ratings. 

The series has never been released on DVD and can be hard to find. Above is the series debut promo and opening credits, uploaded to YouTube by seanmc31076.

Obscurity factor: 9 (not on DVD, not well remembered, can be hard to find)