MQ
I'm not sure it was all night -- as the clip shows, DR had a special broadcast following the late news, and then a breakfast programme in the morning. I think they screened BBC coverage in between. At least that's what I remember seeing in the TV guide.
Did DR do their own all night programme? In 2015 they took BBC World on DR2, not sure what they did in 2017.
I'm not sure it was all night -- as the clip shows, DR had a special broadcast following the late news, and then a breakfast programme in the morning. I think they screened BBC coverage in between. At least that's what I remember seeing in the TV guide.