Since the appearance of Edision OS Nino Pro (no UHD) and Edision OS Mio4K (UHD) The question is no longer asked . They are the two best receivers for the blindscan, very fast, find only separate frequencies of 1MHz, finds Mode and code for multistreams (even PC cards can not as fast), finds a large part (not all) of T2MI. Read what is written on these two receivers in the forum. only limitation, does not go below SR1000. .
The Octagon SX88+ is an excellent HD Blind Scan receiver with Multi-Stream this is one of the best receivers I have tested in the last 6 months it also has a very sensitive tuner for weak signals this is an essential requirement for feeds.