Someone asked me yesterday how long this will take me to do.....
Well if I stick to my schedule, which includes K9 & Company, the McGann Movie and Shada, then there's 703 episodes to watch which will take me to 25/10/2012.
Some notable landmarks on the way:
First Dalek episode: Episode 5 on 27/11/2010 (yes, that early!)
First episode missing from video archive: Episode 14 on 06/12/2010
First Cybermen episode: Episode 131 on 02/04/2011
First Patrick Troughton episode : Episode 135 on 06/04/2011
Last episode missing from video archive: Episode 243 on 23/07/2011
First Jon Pertwee & First Colour episode: Episode 254 on 03/08/2011
First Tom Baker episode: Episode 382 on 09/12/2011
First Peter Davison episode: Episode 561 on 05/06/2012
First Colin Baker episode: Episode 630 on 13/08/2012
First Sylvester McCoy episode: Episode 661 on 13/09/2012
McGann Movie: Episode 703 on 25/10/2012