The recent set of Samsung TV firmware is based on the Linux Kernel, which mean that it is possible to research and enhance your own Samsung TV. Pretty fancy.
The list of Linux-based Samsung TVs is available here.
How To Enable Telnet On A Samsung TV
Reminder: Enabling telnet with this program is not dangerous but with wrong telnet commands, still you have a chance to brick your TV.
Download SamyGO Telnet Enabler Samsung TV application from SourceForge.
Copy the SamyGO Telnet Enabler Samsung TV application to a USB Flash, then plug it into your TV. Using the Content Library from the Pup-Up menu, select USB, then under Game menu, select and start the SamyGO application once. The TV will then turn into black and then return to the menu. This will enable a telnet session on the Samsung TV. When you reboot your TV (switch off and back on) you need to reopen telnet via the menu.
Now you are able to telnet to your Samsung TV.
$ telnet 192.168.2.11
Take a look around e.g. at /proc/cpuinfo
# cat /proc/cpuinfo Processor : ARMv6-compatible processor rev 7 (v6l) BogoMIPS : 599.65 Features : swp half fastmult vfp edsp java CPU implementer : 0x41 CPU architecture: 6TEJ CPU variant : 0x0 CPU part : 0xb76 CPU revision : 7 Cache type : write-back Cache clean : cp15 c7 ops Cache lockdown : format C Cache format : Harvard I size : 16384 I assoc : 4 I line length : 32 I sets : 128 D size : 16384 D assoc : 4 D line length : 32 D sets : 128 Hardware : Samsung-SDP83 Eval. Board(64bit 512MB) Revision : 0000 Serial : 0000000000000000