I finally heard back from the Calais radio station today. It seems they have dropped the satellite feed they were carrying (which included Retro Saturday Night) in favor of local programming 24/7. They said the satellite feed's playlist was moving too close to that of their sister station, and they didn't want to duplicate playlists. Understandable.
This had become a staple of any Saturday night I spent at home. It fit right along with my "getting back to being myself" phase that I have been going through the past year. Maybe it's a sign that I've made it through that phase and am indeed back to being me.
If I find myself around Woodstock on a Saturday night, there is another station in Maine that carried the exact same feed. I can't pick it up here because it's the exact same frequency as the Christian rock station. I guess I will have to resort to the show on K100 for my 80s on Saturday night... I just don't like it as well, and there are CanCon restrictions on anything played here.