Gay TV show for kids

There's a very popular TV show for kids (0 to 9 years old) in Spain, they are like kind of Muppets. That show is televised by TVE ( Public Spanish TV). The thing is this week that show made an episode called " A different marriage" these muppets or whatever u want to call them were telling to the kids about 2 men or 2 women can marry too with example and stuff like that. Do you people think this is too much for 6 or 7 years old kids? Would you allow to your kids see that?

Link in Spanish.

http://www.20minutos.es/noticia/26526/0/RTVE/caffarel/lunnis