This Week in USA

The Seeds of Doom: Movie Format
(incorporating: Part One / Part Two / Part Three / Part Four / Part Five / Part Six)
Last updated 02 January 2017
2:00am-5:00am EDT (06:00 GMT) < > « »
BBC America (adverts during broadcast)

Featuring: Tom Baker, Elisabeth Sladen, Tony Beckley, John Challis
When an alien seed pod is discovered buried in glacial ice, a wealthy botanist arranges to have it stolen. Soon it starts to germinate and turns out to be very dangerous.
Synopsis Source: BBC America website schedule listing
Broadcast Source: BBC America