From the first Doctor Who episode in 1963, (as of 04|2014) prior to the 8th Season of the revival, there have been 769 episodes aired. However more than a hundred episodes are 'lost' meaning there are no known copies in existence.
As the fourth doctor, he appeared in 173 episodes which aired in the years 1974 to 1981.He also appears in the TV specials Doctor Who: Shada (1992) and Doctor Who: Dimensions in Time (1993)
The Ninth Doctor had the scripts of his episodes released a few years ago in a book called Doctor Who: The Shooting Scripts
The episodes with the 456 were not in fact episodes of Doctor Who. Rather, they were episodes of the Doctor Who spin-off series Torchwood. The 456 were featured in the Torchwood episodes titled "Children of Earth: Day 1," "Children of Earth: Day 2," "Children of Earth: Day 3," "Children of Earth: Day 4," and "Children of Earth: Day 5."
There are 167 episodes.
Thirteen episodes
There have been 753 episodes in Doctor Who.
The number of episodes in a season of Doctor Who can vary between 10-14 episodes.
The Fifth Doctor appeared in 69 episodes.
there has been about 777 episodes of Doctor Who
on 12/25/2010 there will be 213 episodes of doctor who. oh ya!
There are 13 episodes in Series 1 of Doctor Who, which aired in 2005 and featured Christopher Eccleston as the Ninth Doctor.
The Seventh Doctor appeared in 43 episodes (comprised of 13 stories).
796
There are 13 episodes in all six of the series.
21
24
42