I'll note that Channel 4 has a public service remit in its broadcast license, which, among other things, requires "demonstrating innovation, experiment and crea

I'll note that Channel 4 has a public service remit in its broadcast license, which, among other things, requires "demonstrating innovation, experiment and creativity". Channel 5, otoh, does not, and we don't tend to get a whole lot of interesting new stuff from it - they like to play it very safe.