Pappy,
You bring back some really great memories. I remember when I was a grade school kid - on Sunday nights - there were three shows that signaled the end of the weekend. Disney's Magical Kingdom, Wild Kingdom, and Gunsmoke. As Gunsmoke was winding down, I had to be ready for bed. This was so ingrained, that when I hear the Gunsmoke theme song today, I have the same immediate feeling. What great memories - thanks!