I have found a really simple solution to this problem on my DSLR. On those wide outdoor shots where aliasing and moiré would otherwise drive me nuts, I just select a tiny aperture, put the camera in manual focus, and rotate the focus all the way to infinity. The diffraction of the small aperture will reduce blur the resolution down to the point where where it is still plenty sharp enough for HD video, but not sharp enough to alias at the two megapixels of 1080p. An f-stop somewhere in the mid 20s is what you need. I have a Tamron 17-50 zoom lens that will shoot at f-stops between f-2.8 and f-32. Great lens indoors at 2.8 in low light with shallow depth of field and it's a great lens outdoors with a tiny f-stop, infinite depth of field, and not a trace of moiré or aliasing.