My new neighbors just put up an outdoor antenna. Looks a lot like mine. They've got it pointed somewhere north of Morrison rather than Mt. Zion. Guess that's working out for them but at least half the local stations have antenna space on Mt. Zion or just south of there.
4, 7, 9 are on Lookout Mountain (technically it's the front face of Lookout but it looks like it's on Zion) with 7 & 9 making the mistake of staying on VHF and they share an antenna via a combiner and 4 is on top on a smaller but equal gain UHF antenna, 31 is northwest of there. 2 is -- I forget -- some little station is over on Mt Morrison (co-located with a crap ton of City of Denver public safety stuff), and 6 is oddly still downtown. 12 is up on Squaw Mtn on the far north end of the top ridgeline in their own building north of the public safety stuff.
They may have aimed it for "most number of stations" if they were trying to suck in that station on Morrison. They'd easily get Lookout pointed that way on anything other than a really sharp patterned long boom yagi. And 31 has a LOT of power on UHF so they usually fill in fine from up northwest and 12 has altitude. The tough one to get into the same antenna pattern as the others is if you live way north or way south and want 6. Then you're playing "find the peak and avoid the null" off the side of the antenna while pointing at the stuff on the mountains.)
If you ever want a tour of the 4, 7, 9 shared facility, I know the CBS engineer. He's a very cool guy and loves doing show and tell. The combiner for 7 and 9 looks like a plumber went crazy with six inch copper pipe.
Also if you switched it digital real early, they didn't so much "get their problems sorted out" as they all had to wait for the spiffy new transmitters from Harris. Harris won a contract to do all three at the site so they all ran on "backup" tube transmitters which put out insane levels of power but not as high as their final power levels on the Harris modular transmitters. Those things are cool. 1000W removable modules. Punch a button on the LCD on the front, tell it which module you want to pull out, it powers that one down, output power drops by 1000W (minutes losses in the cabinet) and an LED lights up saying you can pull the module now.
Harris made a LOT of money selling modular solid state monster transmitters during the change-over. Amazing considering they were nearly dead in the public safety marketplace and definitely dead in the telecom space, and nobody was buying their gear. They found a way to shift to broadcast in a big way during those years. Underbid a lot of folks and cranked up production.
