3G Antennas are critical if you get under 2 bars of reception.. in my new location I was only getting 1 bar, now I get 3 with the antenna.
Since digital TV became the norm., new "F" standard coax connectors are starting to appear - still has standard coax plug on the other side to fit to the TV, but new wall fitting ("F" connector) - I had always thought these were installed by Foxtel - turns out they're just the new TV standard for roof antennas.