The TVFool link has gone stale after all this time. The site takes old designators like this down after a few months. Having said that, most places in eastern Broomfield have good line of sight to the Lookout/Morrison/Squaw transmitters – i.e., you'll have strong signals.
You may get good results there from an indoor set of VHF/UHF rabbit ears. Get an un-amplified set and couple it to an extra length of coaxial cable (because cables attached to rabbit ears are almost never long enough to locate the antenna far enough away from the TV set, which can be a source of signal interference).
If rabbit ears aren't preferable or reception from them is less than reliable, you may get good results out of the old outdoor antenna as long as it's not broken or badly corroded. You may even be able to re-purpose one of the dish cables for use with the antenna if they're still in place and the connectors aren't badly rusted. Just buy a matching transformer for attaching coaxial cabling with most antennas, available for about $5 at many electronics stores and home centers, and connect everything together from antenna to TV.
Once you have an antenna connected to the tuner, first set the tuner to work with over-the-air signals, then scan for available channels. There are at least 40 of them available now in most Denver metro locations!