Clayhanger

Clayhanger is a TV adaptation of the series of novels written by Arnold Bennett between 1910 and 1918 about the Clayhanger family. Making its debut on New Years Day 1976, it was on every Thursday evening for 6 months. The episodes average about 51½ minutes in length and the program featured a very solid cast.
http://en.wikipedia.org/wiki/The_Clayhanger_Family
http://www.imdb.com/title/tt0159857/