Hi guys, I am completely new to the world of amp/receivers - I have just purchased a onkyo tx-nr555 with denon 5.1 sys2020 speakers... I have connected my sky q via hdmi directly to the amp and after a few hours, I have realised that the amp is clicking when I change channel, I realise this is because it is going from a HD channel (5.1) to a SD channel (2.1) Is this normal behaviour and should the clicking be so loud? Also, what is the best audio mode to use? There are a lot of options, ranging from: all channel stereo, full mono, theatre dimensional, direct, Dolby surround, DTS:X, tv logic... I personally liked having pure audio on via the button on the front of the unit with ‘direct’ selected from above but it makes my amp do a huge clicking sound when I change channel - it’s sounds worrying but I don’t want anything to break. What do you guys use? Haven’t even got round to connecting up my PS4 pro/ub900 uhd player yet!