Bannan is being produced by Christopher Young, the man behind The Inbetweeners, and has been shot around the Sleat area of the island for the past four weeks.
The writer of the series, Chrisella Ross, who is based in Upper Bayble on the Isle of Lewis, said there are already talks to write more episodes beyond the first to be broadcast on the Gaelic channel next year.
Three half-hour pilot episodes, in Gaelic with English subtitles, will be shown, and it is hoped that around 15 more episodes will follow.
Although it is being shot on Skye, Bannan is set on a imaginary island.
The project, directed by Tony Kearney, has received £300,000 funding from Creative Scotland, and is the most expensive project yet for the channel, which attracts 600,000 viewers a week.
Bannan, which means roughly the 'ties that bind', follows lead character Mairi Macdonald and her return to the island she left eight years ago at the age of 18.
Ms Ross has seen the 'rushes' or early footage of the show and is happy with the results.
She said: "I don't have anything to do with the filming, I just hand the scripts over, but I like what I have seen as the photography involved is really fabulous."
She said she hopes the drama has an appeal beyond the Highlands and Islands or Gaelic community.
"The stories are the same wherever you live, and it is human stories, people's relationships with each other, and we hope that means as much in the central belt as anywhere else," she said.
"I very much had Lewis in mind when I was writing the series, but there are a lot of similarities in all the island communities."
Cast members, who all speak Gaelic, include Debbie Mackay, Peigi Wood, Daibhidh Walker, Kathleen MacInnes, Dòmhnall Eoin MacFhionghain and Iain MacRae.