Nova-s2 pctv/461e based on old Montage TS2022/M88DS3103 tuner/demod chip. First version M88DS3103 not support multistream, but latest m88ds3103b should support (but maybe driver not support ISI selection and you receive only first substream). TBS 5930,5530 based on new single-chip tuner/demod m88rs6...