1947
WMAR/ch. 2 (independent) signs on.
1948
WMAR/ch. 2 becomes a CBS affiliate.
WBAL/ch. 11 (NBC) signs on.
WAAM/ch. 13 (ABC primary, Dumont secondary) signs on.
1955
WAAM/ch. 13 drops Dumont.
1957
WAAM/ch. 13 changes call to WJZ.
1967
WMET/ch. 24 (independent) signs on.
1969
WMPB/ch. 67 (NET) signs on.
1970
WMPB/ch. 67 becomes a PBS affiliate.
1971
WBFF/ch. 45 (independent) signs on.
1972
WMET/ch. 24 goes off the air.
1981
WMAR/ch. 2 switches to NBC.
WBAL/ch. 11 switches to CBS.
WNUV/ch. 54 (independent) signs on.
1985
WJKL/ch. 24 (religious independent) signs on.
1986
WBFF/ch. 45 becomes a Fox affiliate.
1987
WJKL/ch. 24 switches to Home Shopping and changes call to WHSN.
1995
WMAR/ch. 2 switches to ABC.
WBAL/ch. 11 switches back to NBC.
WJZ/ch. 13 switches to CBS.
WHSN/ch. 24 becomes a UPN affiliate and changes call to WUTB.
WNUV/ch. 54 becomes a WB affiliate.
2006
WUTB/ch. 24 becomes a My Network TV affiliate.
WNUV/ch. 54 becomes a CW affiliate.
2009
All analog broadcasts cease. The following list shows each station's physical digital channel in parentheses and subcarriers in italics.
WMAR/ch. 2 (38) - 2.2 - Live Well Network
WBAL/ch. 11 (11) - 11.2 - Me-TV
WJZ/ch. 13 (13)
WUTB/ch. 24 (41) - 24.2 - Bounce TV
WBFF/ch. 45 (46) - 45.2 - This TV; 45.3 - ZUUS TV
WNUV/ch. 54 (40)
WMPB/ch. 67 (29) - 67.2 - MPT2; 67.3 - V-Me
WMAR/ch. 2 (independent) signs on.
1948
WMAR/ch. 2 becomes a CBS affiliate.
WBAL/ch. 11 (NBC) signs on.
WAAM/ch. 13 (ABC primary, Dumont secondary) signs on.
1955
WAAM/ch. 13 drops Dumont.
1957
WAAM/ch. 13 changes call to WJZ.
1967
WMET/ch. 24 (independent) signs on.
1969
WMPB/ch. 67 (NET) signs on.
1970
WMPB/ch. 67 becomes a PBS affiliate.
1971
WBFF/ch. 45 (independent) signs on.
1972
WMET/ch. 24 goes off the air.
1981
WMAR/ch. 2 switches to NBC.
WBAL/ch. 11 switches to CBS.
WNUV/ch. 54 (independent) signs on.
1985
WJKL/ch. 24 (religious independent) signs on.
1986
WBFF/ch. 45 becomes a Fox affiliate.
1987
WJKL/ch. 24 switches to Home Shopping and changes call to WHSN.
1995
WMAR/ch. 2 switches to ABC.
WBAL/ch. 11 switches back to NBC.
WJZ/ch. 13 switches to CBS.
WHSN/ch. 24 becomes a UPN affiliate and changes call to WUTB.
WNUV/ch. 54 becomes a WB affiliate.
2006
WUTB/ch. 24 becomes a My Network TV affiliate.
WNUV/ch. 54 becomes a CW affiliate.
2009
All analog broadcasts cease. The following list shows each station's physical digital channel in parentheses and subcarriers in italics.
WMAR/ch. 2 (38) - 2.2 - Live Well Network
WBAL/ch. 11 (11) - 11.2 - Me-TV
WJZ/ch. 13 (13)
WUTB/ch. 24 (41) - 24.2 - Bounce TV
WBFF/ch. 45 (46) - 45.2 - This TV; 45.3 - ZUUS TV
WNUV/ch. 54 (40)
WMPB/ch. 67 (29) - 67.2 - MPT2; 67.3 - V-Me
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