Hi SlyParma,
Other than B&O and Loewe, most TVs only have stereo audio processing included. Hence, to get Dolby surround sound, the simplest option is usually to add an AV receiver. Please look for a receiver with pre-out sockets fitted on all channels (there isn't any easy way to get surround sound on most TVs without a receiver).
I would suggest looking at the Pioneer SC-LX59, Denon AVR-X3300, Yamaha RX-A830 or RX-V775 or Onkyo TX-NR828 AV processors/receivers, all of which have audio pre-out sockets for easy connection of Beolab speakers for a Dolby surround sound setup.
You can connect stereo Beolab speakers (eg. Beolabs 18, 20, etc) to one of these processors using these cables (if you choose the "standard" cable, then one set of cables is needed for each pair of speakers to be connected, if you choose the "high-end" cables, then you need one cable for each speaker):-
Standard cables: link
High-end cables: link
For the Beolab 2 subwoofer and the Beolab 7-6 centre speaker, these each need a special powered cable to generate the trigger signals that would normally be sent from a B&O television:-