14 April 1973: broadcast of second episode of Planet of the Daleks. The Daleks capture the Doctor; Jo links up with Wester the Spiridon; a second Thal ship lands.
14 April 2007: broadcast of Gridlock. The Doctor returns with Martha to New New York, where everyone is locked in a perpetual traffic jam, unwittingly serving the Macra.
I agree about the Slitheen and all the fart jokes, and although I loved how Harriet was to become PM and lead Britain into its golden age, my least favourite Doctor, Ten, would ruin that in a fit of pique, taking away the best part of that two-parter.
I thought Ecclestone made a great Doctor and was very sorry to see him go, at the time and in retrospect. I do like Eleven though, despite a sulky tuch of Tennish emo in the Christmas special.