All Star Western Theater
The first season featured a lot of B Western stars and singing cowboys. In the second season, Foy Willing and The Riders of The Purple Sage became regulars. The primary sponsor was Wonder Bread. I'm not 100% sure this was a CBS Network show, but it was produced and aired by KNX in Los Angeles for a national audience, it does seem likely though, given it was aired on Saturday nights up against the likes of The Grand Old Opry and Barn Dance.
The dramatic action is sandwiched between rather pleasant country and western music that makes the listening experience an enjoyable one - at least it was for me.