The logic is as follows: Both the Austin and San Antonio DMAs have separate local affiliates broadcasting the programming of the various networks in each city. Austin is served by Channels 7 (FOX), 24 (ABC), 36 (NBC), 42 (CBS) and 54 (WB). Meanwhile, San Antonio is served by Channels 4 (NBC), 5 (CBS), 12 (ABC), 29 (FOX) and 35 (WB). By comparison, the network affiliates for the San Francisco Bay Area are spread throughout San Francisco, San Jose and Oakland. San Francisco is home to Channels 5 (CBS), 7 (ABC), 20 (WB) and 44 (UPN). Oakland is home to Channel 2 (FOX). San Jose is home to Channel 11 (NBC).
Manchester is included as part of Nielsen's Boston DMA because the New Hampshire city is home to just one network affiliate, Channel 9 (ABC). The programming of the remaining networks reaches Manchester via Boston-based affiliates: Channels 4 (CBS), 7 (NBC), 25 (FOX), 38 (UPN) and 56 (WB). The Providence-New Bedford (RI/MA) Nielsen DMA isn't considered part of Boston's DMA because the former television market has all of its own network affiliates: Channels 6 (ABC), 10 (NBC), 12 (CBS), 22 (UPN/WB) and 64 (FOX).