Complex sentence: TRB made leaflets and fliers about their political views and sent them to everyone who attended their gigs, they gave away badges and made up T-shirts emblazoned with the band's logo and they appeared regularly at Rock Against Racism concerts.
Split into simpler sentences: TRB made leaflets and fliers about their political views and sent them to everyone who attended their gigs. They gave away badges and made up T-shirts emblazoned with the band's logo and they appeared regularly at Rock Against Racism concerts.