When was doing contract work I could install a complete new TV aerial in
25 minutes, including cable and testing. It was no-frills but perfectly
serviceable. How long would it take a DIYer to fit an aerial on a
chimney, align it, fix the cable, test, etc? All Saturday? And even then
it would most likely be a crap job.

http://www.wrightsaerials.tv/aerialp...iy/index.shtml

Bill