Heidi Klum. (AP File)

Supermodel Heidi Klum has urged fans of her hit U.S. show Project Runway to assemble outside TV mogul Harvey Weinstein’s home - to protest delays stopping the sixth season from airing.

The series has been left in limbo as bosses at TV station Bravo battle Weinstein's attempts to transfer it to the Lifetime network.

The final episode was filmed during New York Fashion Week, but not a single segment of the latest season has aired - leaving presenter Heidi Klum fuming.

And although Oscar-winning producer Weinstein has vowed the show will reach audiences by any means possible, Klum admits she is growing impatient.

She says, "I think that people should be demonstrating outside of Harvey Weinstein's house. If it were up to me, it would be on by now."