Name : Nikhil PundlikStays in : Ashokvan - Borivali, MumbaiCurrent Equiment - Hathway Cable , Humax SD Set top box.Hey guys, I recently got a call from Hathway saying they had launched HD services in Mumbai , and whether i would like to try.I jumped at the chance, and also went all the way to thier Lower Parel office for a demo.I could not make out too much from the demo, because they are using 21 inch computer screens to demo.So gopichandji, my question is actually for u. You have used the SD and the HD boxes (from what i read on this forum), is there a huge difference int eh PQ of SD channels if i upgrade the box ?Their Sales Rep ( demo wala ) told me that SD-STB was giving MPEG2 quality images, while HD-STB will give MEPG4 quality of images for viewing SD channels.Which i believe would be better, but as i have not seen myself yet , i am still not sure. I still have my doubts. Gopichandji , can you please clear them ? Is the PQ of SD channels better over HD-STB compared to SD-STB ??I am still not convinced as to how they are selling HD connections with thier exisitng (I assume SD) underlying cabling ?The Dish that DTH providers provide, uses the same type of cabling that gets u connected to thier box - and then the box can be HD or SD based on what u subscribe. However, they say that they cannot connect more than 6 HD boxes to 1 dish , because the cable is not powerful enough to carry True HD signals for more than 6 boxes. In that case, I am still confused as to how Hathway are promising of providing HD quality over thier exiting cabling ?I am not a electronics / electrical major - so i may be missing something that u guys arent. could u please explain ?Thanks,Nikhil