Five days since the TV performance, Boyle’s semi-final stab at Memory has already hit 90 percent of the viral video views that her debut I Dreamed A Dream clocked up in the same period last month, says Visible Measures - that’s 16.8 million views, over 30,000 comments and over 700 embeds.

In other words, the buzz Boyle picked up first time around meant her sophomore effort nearly equalled her original, which itself was the fastest growing viral video ever. I Dreamed A Dream has a long tail - it’s now up to 235.5 million views, says Visible Measures, which monitors more than 150 video sharing sites.

Britain’s Got Talent distributor FremantleMedia has a non-UK YouTube partnership in which it uses the site’s ContentID system to find and “claim” Talent videos, even unofficial copies, on which to place its own ads. It’s not clear what the thinking is behind banning embeds; ITV could gain from its stated aim to push traffic instead to ITV.com and YouTube, whose in-stream advertising efforts are nascent, could benefit from display ads around Talent videos on its own site. We’ve asked for comment…