That episode featured the 4th Doctor, who was played by Tom Baker. The plant monster was called a Krynoid.
Jon Pertwee was 50 when he first took the role of the doctor. He filmed his first episode (The Spearhead from Space) in the second half of 1969 shortly after his 50th birthday (Which was in July 1969)
Jon Pertwee.
1970, starting with Jon Pertwee's first episode "Spearhead from Space".
She first appeared in 1973 in an episode called The Time Warrior. The Doctor at the time was the third Doctor, played by Jon Pertwee.
'Doctor Who' The Pertwee Years - 1992 V is rated/received certificates of: UK:PG
Jon Pertwee
An actor who played the third Doctor Who.
No, he was the third doctor.
There was a classic story called The Sea Devils. It starred Jon Pertwee as the Doctor, Katy Manning as Jo Grant and Roger Delgado as the Master. More details are available on the BBC's website.
Jon Pertwee and Tom Baker.
Jon Pertwee, from 1970 - 1974.
"The Hungry Earth" was based off the serial in the seventh season of Doctor Who (in 1970) known as "Doctor Who and the Silurians". It features the third Doctor, played by Jon Pertwee, his companion Liz Shaw (Caroline John), and UNIT (United Nations Intelligence Task force).