Rare video clip of a politician giving 5 straight answers to 5 consecutive questions

In a recent post about a politician actually answering a TV interviewer's question (Mandelson gives two straight answers to two of Paxman's Questions), I mentioned a classic interview in which Nigel Lawson seemed to take Brian Walden by surprise by giving straight answers to five questions in a row.

The year was 1989, when Lawson's dissatisfaction with Mrs Thatcher's apparent preference for the advice of the economist, Sir Alan Walters, had led the then Chancellor of the Exchequer to resign.

I've just been sorting through some old video tapes, and unearthed the original sequence - which raises the question: has any other politician ever given a straight answer to more than five consecutive questions?

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