From TARDIS Index File, the free Doctor Who reference.

BFA serves as a prefix for Big Finish Doctor Who Audio Dramas.

BFA should only be used for audio dramas featuring the Doctor. For prefixes for other franchise-related audio dramas produced by Big Finish Productions see Tardis:List of prefixes.

For Big Finish productions produced in collaboration with BBC Radio, use the prefix BBCR/BFA.

Example

• BFA: The Sirens of Time. Produced by Big Finish and never broadcast (to date) on BBC Radio.
• BFA: Storm Warning. Produced by Big Finish, later aired on BBC Radio.
• BBCR/BFA: Horror of Glam Rock. Produced by Big Finish in collaboration with BBC Radio.