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Production No. 75 • BBC Broadcast Date: 28 Dec 74 Doctor: Tom Baker • No. of Eps: 4 • Total No. of Eps: 385 Companions: Sarah Jane Smith, Harry Sullivan, UNIT Villains: SRS, Miss Winters Producer: Barry Letts Director: Christopher Barry Writer: Terrance Dicks Designer: Ian Rawnsley .
Production No. 76 • BBC Broadcast Date: 25 Jan 75 Doctor: Tom Baker • No. of Eps: 4 • Total No. of Eps: 389 Companions: Sarah Jane Smith, Harry Sullivan Villains: Wirrn Producer: Barry Letts Director: Rodney Bennett Writer: Robert Holmes Designer: Roger Murray-Leach .
Production No. 77 • BBC Broadcast Date: 22 Feb 75 Doctor: Tom Baker • No. of Eps: 2 • Total No. of Eps: 391 Companions: Sarah Jane Smith, Harry Sullivan Villains: Styre, Sontarian Producer: Barry Letts Director: Rodney Bennett Writer: Bob Baker, Dave Martin Designer: Roger Murray-Leach .
Production No. 78 • BBC Broadcast Date: 08 0Mar 75 Doctor: Tom Baker • No. of Eps: 6 • Total No. of Eps: 397 Companions: Sarah Jane Smith, Harry Sullivan Villains: Davros, Daleks Producer: Barry Letts Director: David Maloney Writer: Terry Nation Designer: David Spode .
Production No. 79 • BBC Broadcast Date: 19 Apr 75 Doctor: Tom Baker • No. of Eps: 4 • Total No. of Eps: 401 Companions: Sarah Jane Smith, Harry Sullivan Villains: Cybermen Producer: Barry Letts Director: Michael E. Briant Writer: Gerry Davis, Robert Holmes Designer: Roger Murray-Leach
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