The channel - available on Sky and Virgin Media - is aimed at 18 to 34-year-olds and features user-generated content that can be voted off air by viewers.
Gore, who is chairman of the channel, told journalists at a breakfast press conference that Current TV was 'addictive - which in this case is a good thing'.
When asked what kind of film he would have made as a teenager, Gore replied: 'That's actually not fit for discussion.'
Later, during a visit to the London Film School, Gore was targeted by two semi-nude activists from animal rights charity Peta. Their beef? That the environmentalist is not a vegetarian.
But the former presidential candidate was not caught out. Taylor Herring co-founder James Herring says: 'Gore slipped in the side door, dodging Peta's paps.'