We used to take turns sitting in the lounge and sitting in the TV/play areas dotted throughout the terminal. There is one of these right outside The Wing J lounge (but one level down - however you can look down over the balcony edge of the lounge), so the lucky one with the champers can cast sympathetic glances down at the one with the children, and the latter can make rude gestures to the former if they are overrunning their time or champagne allotment!

No specific provision in the lounge, but at those ages video often works wonders. Do you have a tablet?