TV DXing is the hobby of receiving and identifying out-of-market over-the-air television signals.
(http://www.dtvusaforum.com/attachment.php?attachmentid=3344&d=1444063880)
Examples of analog DXing in the 1980s and 1990s:
https://www.youtube.com/watch?v=3WPhPYTNl5k
https://www.youtube.com/watch?v=4YtDSS-b4pA
Modern digital DXing examples:
https://www.youtube.com/watch?v=xSblZiZHsyY
https://www.youtube.com/watch?v=bEDCxRHopg0
Living in Connecticut the most common TV DX I would get would be Providence, Rhode Island - Mainly WJAR Channel 10 and WPRI Channel 12. One in a great while I would be able to pick up WLNE Channel 6 New Bedford (Providence Market).
One time I got most of Boston Channels in addition to the Providence ones.
WBZ Channel 4
WCVB Channel 5
WHDH Channel 7
WFXT Channel 25 (Weak with a local on 24)
WSBK Channel 38
WGBX Channel 44
WLVI Channel 56.
Once I got WVTA Channel 41 the PBS Station from Windsor, Vermont. Amazing with semi-local WGGB Springfield, MA on Channel 40.
I live in Green Bay, Wisconsin where some of my TV DXing would come from Northern Wisconsin and Michigan's Upper Peninsula.
One time I got these stations:
WJMN-TV (CBS) 3, Marquette, Michigan (a semi-satellite of WFRV-TV (CBS) 5, Green Bay, Wisconsin)
WJFW-TV (NBC) 12, Wausau/Rhinelander, Wisconsin
I got those channel when there was good tropospheric progression in my area.
I did a lot of DX'ing as a teenager. I live in the center of Maryland's Eastern Shore; some of the more common "gets" were WAVY-10 from Hampton Roads or WHAG-25 from Hagerstown. I recall early one morning pulling in a station from CT, as I recall, maybe ch.6? Wish I'd recorded more info back then. We had a decent antenna/amp but no rotor. I spent a lot more time DX'ing the AM broadcast band.
I have never been able to DX any television since over-the-air signals went all-digital.
But back in the analog days I had several cool experiences.
- WRC-TV Channel 4 from Washington, D.C. popping-up nearly as strong as local in Pittsburgh
after WTAE-TV had signed off for the night. (this was in the late 80's when TV stations
were still signing off)
- A station from Bryan/College Station, Texas coming in over a roof aerial to the display TV sets in my Ames store in Imlay City, MICHIGAN!
- A night with a very strong inversion in 1996 where I sat in my bedroom in Pittsburgh and watched over-the-air stations from Detroit, Toledo, Cleveland, southern Ontario and Erie, PA.
I almost forgot. DXing with cable TV. For a few days one summer we were staying at my Great Aunt's cottage in Niantic, Connecticut. Whatever cable company they had must've picked up Channel 2 WGBH the PBS station in Boston OTA because when they signed off for the night for maintenance Channel 2 WCBS from NYC came in on Channel 2 on the Cable System.
When I lived in Kennebunk, Maine WJAR in Providence would come booming in during the wee hours of the morning after WCBB in Lewiston, ME signed off on our cable system. When I lived in central Maine CBAT in St. John, New Brunswick would come in from time to time over the air.
People who live in Florida can DX TV stations from as far away as Cuba, The Caribbean and parts of Mexico, Central America, and South America, according to these videos:
The Caribbean:
https://www.youtube.com/watch?v=WUgF1HgdvQA
Mexico to Panama:
https://www.youtube.com/watch?v=JA6M1yJNI8Y
Belize/Honduras:
https://www.youtube.com/watch?v=SBEcPTj8hW8
Cuba:
https://www.youtube.com/watch?v=uRXzLAgHZ-4
https://www.youtube.com/watch?v=D9hDQzR1fM4
https://www.youtube.com/watch?v=iWZqvKrlHoA
https://www.youtube.com/watch?v=kZAAg8wYXmg (E-skip from Ohio)
https://www.youtube.com/watch?v=VJR9ugujzss (E-skip from Ohio)
Guatemala:
https://www.youtube.com/watch?v=1zcQb6pWj_4 (E-skip from Ohio)
Mexico:
https://www.youtube.com/watch?v=pwN5_7Qi3KU (E-skip from Ohio)