a new ps3 can not be hacked, sorry but thats all there is to it and there is no progress/no ETA on anything either
im guessing you have a superslim by the fact that you say 500gb in which case forget all about this hacking business and maybe drop back in a few months/years to check for updates
as for dvd playback, go to settings and change the display to match the tv
as for warez, no you cant download free games unless your console can be hacked
the ps3 wont play mkv but will play other video files off external usb as long as its formatted to fat32
as for people not replying, it may have something to do with the fact that you failed to search first. these questions are answered daily
check here for info regarding models and bookmark the page
http://www.ps3devwiki.com/wiki/SKU_Models