Hi there, I have a question. I have a 5.4.1 Dolby Atmos setup with a Marantz 7009 and using a PS4 as bluray source. Atmos discs work great (albeit inefficient with the three-step initialisation process, see below). My question is how I can get the PS4 to play all the Atmos demos on YouTube also in Atmos format. I cannot get this to work. Does anybody know whether this is possible anyway and, if so, what special thing should I do. The PS4 is of course set to bitstream (Dolby). When playing YouTube no Atmos signal is received by the Marantz. It would be great to see all these great demos that are available on YouTube in the Atmos format as the are supposed to do. Thanks in advance! PS, for people having difficulty playing Atmos from a disc on the PS4, this is how it works. First under settings, the PS4 should be set to bitstream (Dolby). Then in the settings menu of the disc, you select Atmos as the sound source. Then, the least obvious, when running the movie, you press the options key of the controller and (again) you need to select bitstream for the hdmi out. Voila, perfect Atmos input on your AVR!