The Onedin Line was a drama TV show about a family who runs a shipping company in the late 19th century. It was on the BBC from 1971 to 1980 for 8 seasons and 91 episodes. It starred Peter Gilmore playing the title character.
Other websites
The Internet Movie Database
There were 91 episodes broadcast from October 1971 to October 1980 see this link for a complete list and more details Anne Stallybrass & Peter Gilmore, the actors who played Anne and James Onedin Website of Michael E Briant, who directed some of the episodes