Following the success of iPlayer special 'The Night of the Doctor', the sci-fi showrunner told SFX that he would like to make similar episodes for the new series.
"I think we now have to accept that online stuff isn't a spin-off anymore," he said. "We used to treat it as a spin-off that maybe some people would watch.
"And to be absolutely honest I thought they were bank raids - they'd give me some money to do an online thing and I'd say, 'Right, what crew do we already have, what actors do we already have, what set do we already have?' So we'd spend no money on it at all, whack it out in a day, pump the money into the episode and off you go."
He continued: "But then you suddenly realise something like 'Pond Life',