I think the start tonite was a mistake. Cain had a clean pink shirt then he was back at the hospital with his dirty wedding shirt on

He had the same shirt on all the time. It's just during the first scene when he went back to the van, the lighting made it look slightly pinkish, but it was still the dirty greyish shirt he had on.

I think your TV's playing up, chuck. Cain Dingle wouldn't wear a pink shirt