The same background music was used in parts of Bachelor Father.I hope there’s enough room to throw my defense lawyer mindset explanation of the missing ding out that same window, as I’ll bet the farm on your explanation.
Interesting about replacing some of the original scores with library tracks, were they changed for copyright reasons, or as an enhancement afterthought?
Watching Alfred Hitchcock Presents in the present day, I recall hearing four or so catchy little ditties that were also used in Leave It To Beaver, or vice versa.