@BaconChomper March 20, 2019 I just recently began the Danish tree and the "dem" is not evident to my ear. Luckily I had it as a written translation sentence and not just oral (aural?). P.S. Just did the sentence again and the "dem" was heard clearly; what's up with that?
I think the most practical idea is to try pronouncing d-m without the vowel, so to say. It's those sounds which are distinctive, so everyone will understand you. Danish vowels are tricky.
Those means "plural thing or person over there". Them is a just a plural thing or person.