On the subject of poor DTV signals... try Cle Elum WA (pop. 2000), Roslyn (pop. 900), Naches (pop. 1000 or so), etc. where TV signals are non-existent. People have relied on cable/satellite for many years. There are zero translators in Cle Elum and Ellensburg translators are too far away. Forget an antenna...it pulls in ZERO stations.
They are stuck with satellite contracts and/or cable bills. Decades ago, Seattle stations were available on ten-watt analog translators in the Cle Elum valley. Ch 2 was KING, ch 10 was KOMO, and ch 12 was KIRO. Signal output at times was very poor, as I have a broadcast of Town Meeting (Ken Schram) on VHS that was taped off the ch 10 KOMO translator in Cle Elum in the late '80s. Audio is OK, but the video is a terrible mess, barely any color. Queen Anne Hill was 85 miles away over the Cascades. (VHS was an estate sale find in South Cle Elum last month)
Even here in West Valley, the LPTV stations do poorly on a little rabbit ear antenna line-of-sight 6.5 miles. Cozi TV is full of pixels all day long, as well as Buzzr (both on KYPK-LD, 13.7KW ERP). Too bad, since my mom has rediscovered 3rd Rock from the Sun and John Lithgow for the first time in 20-some years. Maybe I need to hook up the larger metal antenna (3.5 ft. high) that I have. No rooftop antenna allowed at this apartment complex.