Two helicopters were flying in low, and as they hovered over the crowds, the groom was lowered from a cable onto the stage.

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Yet for a party with such close ties to Hollywood, their efforts at adding TV gloss to their stage show have been strictly public-access cable.

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Soon after his release, Brown was on stage again with an audience that included millions of cable television viewers nationwide who watched the three-hour, pay-per-view concert at Wiltern Theatre in Los Angeles.

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He insists the manifesto group, which draws on contributions from frontbench spokesman like Mr Cable and numerous other policy committees, is still open to new ideas, even at this relatively late stage.

BBC: Manifesto Man: Danny Alexander