well, when I grew up, we had like 8 channels on TV
2 dutch, 2 from Belgium, and 4 German channels, so as we were little, he watched a LOT on German tv, just like everyone here did.. The local dialect also sounds almost like the Dialect from Cologne, so there are lots of Parallels.. But having an American wife, going to Pizza hut in Aachen ordering in German while thinking in Dutch sometimes gives me difficulties
Luckily they knows us there by now, she often they just talk English to her. I have to Say that I find Aachen as really wonderful city.. It's almost as diverse in Ethnic cultures as Amsterdam or Paris is!