Why do you need to know the JTAG and EEPROM stuff? Usually the only reason is for people who want to hack. We don't do that here. We pay for our programming legally.
(m) Discussion about hacking into the content of Personal Video Recorders (PVR's) including digital transfer of undecoded programming from the PVR's hard drive to another medium is prohibited. However, discussion about upgrading the hard drive in a PVR is allowed.