This all reminds me of the time at Foxtel playout centre when our TV equipment cooling system died. You would think that the gear would not produce that much heat, but within 10 minutes we were all basically stipped to under garments and dealing with cross-muxing (combining of channels onto one signal) of channels which was a hellraiser. Having the adult channels being viewable on a kid's channel frequency was not one of my more enjoyable nights. Thank goodness it was night, and the equipment area had huge doors which could allow a breeze inside. We were still operating in a 45 degrees celcius environment, but the muxing freakouts stopped. All the equipment was properly installed, and was nothing more than video relays and some playback tape machines.