WICU-TV (channel 12) is a television station in Erie, Pennsylvania, United States, affiliated with NBC. It is owned by SJL Broadcasting, which maintains a local marketing agreement (LMA) with Lilly Broadcasting, owner of CBS affiliate and company flagship WSEE-TV (channel 35), for the provision of certain services. The two stations share studios on State Street in downtown Erie; WICU-TV's transmitter is located on Peach Street in Summit Township, Pennsylvania.

WICU-TV's broadcast signal reaches the city of Erie, surrounding communities, and across Lake Erie in parts of Ontario, Canada. It is available on all cable systems in Erie, Warren and Crawford counties in Pennsylvania, and select providers in Venango County, Pennsylvania, southwestern New York State, and northeastern Ohio which are part of the Pittsburgh, Buffalo, Cleveland, and Youngstown markets respectively. As recently as the 1990s, it was available on cable as far east as Olean, New York (well out of WICU's broadcast range and in competition with Buffalo NBC affiliate WGRZ).

WICU-TV began broadcasting in Erie on March 15, 1949, as an affiliate of all four networks of the time (NBC, CBS, ABC, and DuMont). It was one of the last stations to be granted a construction permit before the Federal Communications Commission (FCC) froze new applications. Channel 12 was founded by Edward Lamb, an attorney from Toledo, Ohio who also owned the now-defunct Erie Dispatch-Herald, and other broadcast properties including WTVN-TV (now WSYX) in Columbus, Ohio, which went on the air six months later. In 1952, Lamb purchased WIKK radio (1330 AM, later WICU and now WFNN), giving channel 12 a sister station on radio.

WICU-TV held a monopoly on Erie television until WSEE signed-on in 1954 as a CBS affiliate. The two stations, then separately owned, shared ABC programs until May 1961, when channel 12 switched its main network alliance to ABC and relegated NBC to a secondary affiliation with WSEE. Two years later, in May 1963, WICU reversed itself and returned to NBC as its primary network. ABC was again split between channels 12 and 35 until WJET-TV (channel 24) signed-on in April 1966 as Erie's exclusive ABC outlet.

The station was a major beneficiary of a quirk in the FCC's plan for allocating stations. In the early days of broadcast television, there were twelve VHF channels available and 69 UHF channels (later reduced to 55 in 1983). The VHF bands were more desirable because they carried longer distances and, because most televisions did not carry UHF tuners until being forced to by the All-Channel Receiver Act in the 1960s, VHF receivers were more accessible. Since there were only twelve VHF channels available, there were limitations as to how closely the stations could be spaced.

After the FCC's Sixth Report and Order ended the license freeze and opened the UHF band in 1952, it devised a plan for allocating VHF licenses. Under this plan, almost all of the country would be able to receive two commercial VHF channels plus one non-commercial channel. Most of the rest of the country ("1/2") would be able to receive a third VHF channel. Other areas would be designated as "UHF islands" since they were too close to larger cities for VHF service. The "2" networks became CBS and NBC, "+1" represented non-commercial educational stations, and "1/2" became ABC (which was the weakest network usually winding up with the UHF allocation where no VHF was available).

However, Erie was sandwiched between Pittsburgh (channels 2, 4, 11 and 13) to the south, Wheeling–Steubenville (channels 7 and 9) to the southwest, Cleveland (channels 3, 5 and 8) to the west, State College (channels 3, 6, and 10, later 8) to the southeast, Buffalo (channels 2, 4 and 7) to the northeast, and London, Ontario (channel 10), to the north. This created a large "doughnut" in Northwestern Pennsylvania where there could only be one VHF license. WICU-TV was fortunate to gain that license, and as a result was the market leader in Erie for most of its history.

Edward Lamb nearly lost WIKK (renamed WICU [AM] in 1957) and WICU-TV in 1954 due to allegations that he associated with Communists, but was exonerated in 1957. A decade later, in August 1967, Lamb reorganized his business interests, selling off all non-broadcast holdings as well as WICU radio. Lamb's company, later renamed Great Lakes Communications, continued to hold channel 12. After Lamb's death in 1987, his family continued to own the station until 1996, when it was sold to SJL Communications, a subsidiary of SJL Broadcast Management and Alta Management. SJL purchased Alta's interest in 2005. A consummation notice was filed with the FCC in February 2007 to voluntarily transfer control of the station from SJL Communications to SJL Broadcast Management Corporation. This transaction was then authorized by the FCC.