Patent ID: 8624982

Claim:
A device comprising: a receiver and a decoder for a testing device for a multiplexed data stream in the form of a digital television signal; the multiplexed data stream comprising a plurality of encoded data components each being a television channel, wherein each of the encoded data components comprises a plurality of sections each representing different functionality, the receiver comprising an input for inputting a plurality of encoded data components, a demultiplexer for demultiplexing the plurality of encoded data components, and a plurality of outputs each for outputting a demultiplexed one of the plurality of encoded data components, the receiver being arranged, such that, in use, a plurality of encoded data components each being a television channel received at the input are demultiplexed by the demultiplexer and a demultiplexed one of the plurality of encoded data components is output from one of the plurality of outputs to the decoder, and the decoder being arranged such that it comprises only at least one decoding portion for only decoding the section or sections required for testing an aspect of interest, and discards one or more sections from the digital television signal not required for testing the aspect of interest.