As of today they've just passed the time between An Unearthly Child and and Survival Part Three. And they've so much stockpiled (not just with Tom) that could stop recording today and still have multiple releases a month for the next couple of years.
And if you really want your mind blown someone (thankfully not me) worked out that the total run time of everything Doctor Who related they've released until the end of July is nearly SIX TIMES longer than the Original Series, the New Series, Torchwood, The Sarah Jane Adventures, and Class combined.
And if you really want your mind blown someone (thankfully not me) worked out that the total run time of everything Doctor Who related they've released until the end of July is nearly SIX TIMES longer than the Original Series, the New Series, Torchwood, The Sarah Jane Adventures, and Class combined.