WTAE-TV (4 – DT 51 & 22) is now in full operation from its main Elizabeth Township Transmitter site on Channel 51 and from Oakland on Channel 22. Those who were having trouble receiving Channel 51 (4.1 & 4.2) need to rescan their digital receivers and look for Channels 4.3 and 4.4 which carry the signal from Channel 22. WTAE Chief Engineer Dave Kasperek tells the Post-Gazette that the new construction meets and exceeds expectations.