I actually created a logo (as part of my series on alternate NBC O&Os) for WBZ had Westinghouse/Group W not only signed an affiliation deal with NBC* in 1994, but also would be bought by said network.
*This also means that the other Group W stations (KYW, WJZ, KDKA, and KPIX) all became NBC affiliates (and later NBC O&Os) ITTL.
The present-day logo of Swits Radio ja Férraséwan (SRF), the public broadcaster of Gothic-speaking Switzerland and part of the Swiss Broadcasting Corporation (SRG SSR)
The logo of Afrikaner Uitsaaikorporasie (AUK, Afrikaner Broadcasting Corporation) when it launched its regular color television broadcasts in 1976; the logo itself lasted for the next two decades.