Episode list for Series 3 (second half of Season 2 elsewhere)
1. Tomorrow's Endeavour broadcast 6th Jan 1968
2. The Message broadcast 13th Jan 1968
3. Through the Looking Glass broadcast 20th Jan 1968
4. What They Found There broadcast 27th Jan 1968
5. Of Mhysse and Men broadcast 3rd Feb 1968
6. Decline and Fall broadcast 10th Feb 1968
7. The Quest broadcast 17th Feb 1968
8. The Zoo broadcast 24th Feb 1968
9. Between a Rock... broadcast 2nd Mar 1968
10. The Conference broadcast 9th Mar 1968
11. Reset broadcast 16th Mar 1968
12. Shock broadcast 23rd Mar 1968
13. Tempus Fugit broadcast 30th Mar 1968
Once again Star Trek beat anything that the BBC scheduled against it into the ground. However once again there was a slight decline in viewing figures although Tomorrow's Endeavour and Tempus Fugit both achieved the highest viewing figures for any episode of Star Trek broadcast so far. Research showed that the casual viwers were dropping away because of the runs of linked episodes which meant that they felt that if they missed one they couldn't pick up the story. (These linked episodes would however be a major selling point when it came to selling the video tapes, then the DVDs and then the Blu Rays but thats long in the future
)
However there was a battle brewing between Lew Grade and the American Networks on one hand and the unlikely (given their falling out earlier) partnership of the Roddenberrys and the Andersons over how Star Trek should approach Series 4 and 5 (Season 3). Lew and the Americans wanted more BANGS, a settled bad guy and episodes which could be broadcast in any order. The Roddenberrys and Andersons liked story arcs and a definite episode order(although they didn't mind having some stand alone episodes). There was a massive behind the scenes battle virtually from when series 3 was in the can until the start of filming for series 4. When the dust settled there were some major changes on the production and direction side.