Mr.Fresnel, what a cool name! I recognize the significance of the name, due I suppose, as a reference to Fresnel lenses; I bought one from an Edmund Scientific catalog by mail order way back in the 1970s. My AVS name is due to that I live in Knoxville, TN, first name Ron, ergo, RonKnox.
I didn't specify the model of DViCo/TviX HDMI external ATSC/QAM tuner that I have . . . it is the Dvico TViX PVR R-2200 PVR with remote, which I got open box in perfect condition from digitalconnections.com for $120; I think it was or thereabouts. I then added my own, internal Western Digital 500GB 5400rpm 2.5" SATA hard drive that I ordered from Amazon for about $60; so there I had it . . an external HDMI output HD PVR with remote control that I could use with ANY HDMI input device. I have an outdoor high-gain Channel-Master antenna, model 4228HD, so I pay nothing for the digital HD broadcasts I receive and record (I don't have cable or satellite either; the broadcast HD networks I receive, the Netflix DVDs by mail, and the blu-rays I rent for just $1 a night at a local independently owned and run video store are enough for me). DViCo/TviX PVR units are still available by searching the 'net.
I reason that I do not want to buy a built-in HD tuner in every projector that I buy in the future (and I plan to upgrade LED DLP projectors every two to four years), so I bought the external HD tuner PVR once, and now I can shop for any HDMI-compatible LED DLP projector, without a built-in tuner. I got the external HDMI switcher just by searching "HDMI switcher" on Amazon and the 'net, I got it for less than $15, and it works great, even has its own remote or it auto-senses the active input (the specific model is the Apogee HDMI 3x1).
So now, all I desire from an LED DLP projector is HD, good lumen output(for an LED, currently 200 - 300), HDMI input, and a remote. I have seen LCoS, and LCD panel projectors, but for me by far, I prefer the contrast and depth of DLP, plus . . . the pixelated, "screen-door" effect is much less noticeable on DLP than on other types of displays.
I an 47 years old, and I have been working with video/audio electronics, ham radio equipment, and later, computer equipment, since I was ten years old, and I am really drawn to LED DLP projectors, such as the excellent LG HS201. Though admittedly dim in lumens compared directly to other bulb projectors, LED DLPs look wonderfully, smoothly cinematic in a dark environment, and in my opinion, someone who is not willing to darken a room for home theater, isn't really serious about having a movie theater experience at home. After all, why do they darken commercial theaters to show films? It is because it greatly enhances the perceived image.
For much more explanation of this fascinating phenomenon, do an Internet search on "scotopic mesotopic LED"; THIS visual appeal is what has always drawn me to the cinema, and now, it is technologically possible to have digital home cinema projection experientially similar to film-based projection.