please take no offence here but you are getting some good suggestions but you have not posted your set up. your budget and room situation. people need to know if their ideas will ever be considered/match the thread before taking time to post. :-)
I will play around more with the EQ in the yammie 3020 and see where I get. As for the subs I am thinking of selling my PB13 and building 2 large ported subs with Dayton UM 18-22 drivers with pro amps and a Mini DSP so I will have to learn this stuff eventually.
I will try dropping the crossover down to 50hz from 80hz and see how that works.
My mains are Zaph SB 12.3 and centre is a Jim Holtz Finalist so both should be capable down lower.
I have to say that apart from the odd sports broadcast, Foxtel is looking pretty poor these days. Washed out detail, no sense of lighting dynamic range, plastic looking skin textures, ringing artefacts and the whole picture just looks completely lifeless. I can put on any store bought DVD and it completely blows away anything "HD" from Foxtel. I think whoever the engineers are responsible for determining bitrates are blind or else they are begrudgingly following orders issued by the blind.
I think anyone who finds Foxtel good these days must have not had the pleasure of watching ordinary uncompressed standard definition analogue video from 30 plus years ago because quite honestly, what I watched on my analogue TV 40 years ago was better than the lifeless HD digital that Foxtel is offering. It can have it's moments when the odd program gets a decent bitrate and is decent source material to begin with but for the most part it's shameful rendition of wonderful potential of uncompressed, high resolution digital video. Bitrates of 16 Mbps upward for drama start to look reasonably OK with 1080i digital and from that bitrate upwards the picture at least starts to come to life, has some vibrancy, there is some feeling that the sun actually exists and the picture doesn't look like washed out plastic, but anything less than that and to me at least the poor quality is painfully obvious. Makes me really miss the old analogue days when the only compression was the broadcast format itself.
When I put on a Blu-ray or even a plain DVD, it makes me want to cry at the disgustingly brutal compression that Foxtel uses and the life that it takes out of the otherwise excellent programming.