Or here is another analogy.
If they moved the WT Study to a midweek meeting... then a combined TMS & SM that night could include:
5 minutes - Opening Song/Prayer
10 minute - Instruction or Service Talk
10 minute - Bible Highlights
20 minute - 1 or 2 service meeting parts from KM
5 minute - Announcements
Total 45 Minutes
5 minute - Song
45 minute - Watchtower study (which would really limit excess points brought in by the conductor. They would really need to stick to the material to get done on time.)
5 minute - Song/Prayer
Total time 1 hour 45 minutes with song prayer
If they wanted to keep the student talks going they could change the bookstudy to 45 minutes, then do the 3 student talks and still be done in about a little over an hour. They might feel people would be more willing to participate in the school if it was a real small setting.