Help Finding Ian McKellen Internet Resource

I recall someone here posting the link to an interactive Ian McKellen-moderated exploration of Shakespearean theatre and possibly relating this to a single play – I don’t remember which play, though, and don’t have the link handy. Does that help anyone to identify the thing I’m looking for?

Behold, in yonder link there lies awaiting
The merest click of mouse, or key on board,
Noble Sir Ian, complete with video interactive,
On Richard Crookback’s speech - mayhap it strikes a chord.

Dear Sir, I thank thee for thy kindly help,
Which nought can well and easily repay.
You found what I had thought forever lost.
Seekst thou my aid in turn for ought, just say.

Thanks to both of you for the question and the answer. This is wonderful! Now I’m checking out McKellen’s own website, which is, predictably enough, http://www.mckellen.com.

An you delay too long to make a choice,
Sir Ian chides you in his wond’rous voice.