This is a really funny interview with Brad featuring some stories of Everbody Loves Raymond. You can find out what actor grossed out the entire cast and crew with their infamous farts by clicking here:

https://www.stitcher.com/podcast/starburns-audio/gilbert-gottfrieds-amazing-colossal-podcast/e/73555424

The ELR part starts at 1:27:00.

I'm sure it didn't help the cast that half of Peter Boyle's scenes seemed to involve Frank wolfing down food. :)