TM’s and EM’s
The studio engineers all worked to the TM’s (Technical Manager). Each studio day had a TM1, who was senior and looked after the studio lighting, and a TM2 who dealt with all the other technical issues, and liaised with the producer and director.
The TM1 was always in the lighting gallery, and the TM2 in the production gallery. Between them they were the final arbiters of technical quality during the production. TM2’s quite often acted as TM1’s and there were quite few movements in the early days, so I cannot be exactly sure who was in post at the time (mid 1970s). Bob Gell and Barry Hill were the main TM1’s, joined soon by Dick Bentley together with TM2’s who I think were Bob Chaplin, Derek Price, John Jevons and later Ron Irvine. They were joined later by George Allen and Barry Chatsfield. (who moved from being a Cameraman to TM fairly early on as I recall).
The two EM’s (Engineering Managers) at that time were Gordon White and John Endall. They were in charge of all technical planning of O.B.’s . Normally only one EM would be allocated to an OB. as there was rarely any major lighting to be done.