The newest Bv 7-32 has 2 hdmi sockets and NO Bs3 in it and the older ones have no hdmi and only 1 Dvi (dvi does not carry sound).
THe Bv 7-40 Mk 3 has 4hdmi's that you can use but the back the MK4/5 only has two Hdmi's as one is taken up with the Blue ray player (if fitted) and/or the Dvb tuner.If only the tv has the Dvb tuner fitted then you have 3 hdmi's as no blue ray,which you can get/leave as an option!
Hope this helps.
Bv7-55 & Bv7-32...Blue,lab1's x4,Yes4Blue, 6000x4Blue,Beocom6000 Blue,Beo5.Oh what a Blue set-up & a Beosound 5...After all,its Bang&Olufsen!