Machair

Machair was a popular Scottish contemporary drama serial that ran for 151 episodes between 1993 and 1998. It was filmed, and takes place, around the island of Lewis (and in its largest town of Stornoway), at the northern end of the Outer Hebrides, about 35 miles off the west coast of northern Scotland. Most of the dialogue is in Scottish Gaelic with hard-coded English subtitles. 
At the time of its production only about 2% of the Scottish population were Gaelic-speakers, yet the show proved to be very popular in Scotland where it was viewed by about 30% of the TV viewers.
The original writing team of Peter May and Janice Hally left the show about two-thirds of the way through its run, and then its popularity began to dwindle a bit.
In recent months BBC Alba (housed in the same Stornoway studio that contained sets used on this show) has been re-airing the show on Friday evenings. 
Unfortunately, original broadcast information seems to have been lost to time.

Machair