Kaledoscope website, Aug. 24, 1998 (Television Industry Contact Addresses page: Associated-Rediffusion, Sept. 22, 1955-July 29, 1968)
Tardis ftp site, Aug. 24, 1998 (Rediffusion [no publs. in OCLC] and ABC merged to form Thames)
The bird who knew too much, 1998: credits (Associated British Corporation)
Thames Television Unofficial Web site, Jan. 9, 2002 (In 1968 ABC [Television--formed 1955 as a subsidiary of Associated British Picture Corporation] and Rediffusion [formerly Associated-Rediffusion] merged to form Thames Television)