In Monty Python and the Holy Grail, our equine-challenged heroes come upon the Rabbit of Caerbannog, which appears to be an ordinary, harmless rabbit until it starts killing people.

Outdated, obsolete -- but useful again with DTV
With the transition to broadcast digital TV (DTV) in the U.S. — whenever it’s going to happen — outdated, obsolete “rabbit ears” indoor antennas are poised to become a viable threat to cable and satellite TV providers, especially as consumers become increasingly budget-conscious.
My eyes were opened to this threat recently when my parents asked me to connect a digital converter box to the small, 5 year old LCD TV my mother uses in the kitchen. I was naturally concerned that they had (1) attempted a technology purchase without seeking my advice and (2) had gone to Radio Shack to do it.
But what a pleasant surprise the Zenith DTT901 digital converter box turned out to be! (The Shack took care of them — thanks, guys.) For about $20 (after coupon), that little TV suddenly had the best picture in the house:
- Digital-perfect reception of all of Boston’s network affiliates (and then some), and several new sub-channels to boot
- Automatic scaling, zooming, and cropping of HD and SD programming
- An on-screen program guide
And since all of Boston’s DTV stations are currently UHF, they don’t even need the VHF “ears” extended (only channel 7 is currently scheduled to return to its old VHF frequency after the transition’s analog shutdown).
Clearly, this is not the broadcast TV of my youth.

Broadcast TV then
Back then, living 25.5 miles southeast of Boston’s primary broadcast towers in Needham, MA (thanks, AntennaWeb!) meant that we had a VHF/UHF antenna on our chimney, just like everyone else. Ours rotated, though, controlled by an unapologetically analog dial which made a satisfyingly mechanical “thunk” as it stepped the mast from NW to SSW to try for Providence stations too.

Broadcast TV now
Picture quality was mediocre at best. Snow, static, ghosts, waves, whatever, whenever. We signed up for cable as soon as it became available in our town and never looked back. We switched to digital in the early 1990’s as soon as DirecTV receivers hit the magic $99 mark.
But with DTV so easily available, of such high quality, and with such advanced features — for free — why would anyone in the city or suburbs ever pay a $9 or $10 monthly fee for a barebones “local TV” package again?
For cable and satellite providers feeling pressure on the high-end as consumers respond to the economy by shedding premium channels, this new threat to the low-end is unwelcome indeed. Multi-play packages and other retention efforts (such as Cablevision’s Optimum WiFi deployment) become all the more important, but must be targeted carefully, like the Holy Hand Grenade of Antioch, not haphazardly like Jimmy Carter’s boat oars.