The DM816x family features two de-interlacers, one regular, and one "high performance". This makes sense for regular folks, who might be displaying full screen with a PIP.
For folks who are simply doing two streams, there's a potential for support calls claiming "one channel doesn't look as good as the other one". Is it possible, using "general availability" software, to turn off features in the DEIH to match the performance of the DEI?