Thanks for that, fascinating insight into an era almost 10 years before I started using the trains, and nicely complements the Tables 156 and 166 from the same year you sent me
Interesting that the Weymouth, Bournemouth and Exeters all had restaurant facilities in 1974. By 1982, none did, though the former two had a hot buffet and the latter, a cold buffet.
Aside from that though, the Mon-Sat off-peak is almost identical to that prevailing in the early-mid 80s. The peak is significantly different though, as I have observed before: I believe there was a big change in 1977. In particular there was just a half-hourly stopping service down the SWML in the evening peak, vs. every 20 minutes in the 80s. The morning peak, for whatever reason, had a much more frequent service, though.
Another interesting feature is how the Mon-Sat off-peak pattern also applied on Sundays. This had also gone by the 80s, likely a symptom of cost-cutting. The notion of a 7-day-a-week base timetable has never really been re-adopted in recent times, though seems to be commonplace on the continent.
A particularly interesting observation is the hot buffet on the 1342 Bournemouth stopper (the '93'). There seems to be no balancing hot buffet on the inbound working, or the up working later in the day, so wondering if this was an error? The standard stock for these services was 8VEP (half down the SWML, half down to Alton) so a buffet would be unusual. Possible, for whatever reason, a BIG came up the Portsmouth Direct then down to Bournemouth?