The "2" logo was slightly similar to WMAR-TV in Baltimore, Maryland from 1981 to 1995.
1973–1983
ABC station WSIX-TV and WDCN-TV changed channel positions on December 11, 1973 (with the former WSIX-TV becoming WNGE-TV (currently known as WKRN-TV) on channel 2).
1983–2000
WDCN Channel 8 ID (1989)
WNPT
2000–present
The "NPT" in this logo has been used by the station since its change to WNPT-TV on February 22, 2000, conciding with the station being spun off by Nashville Public Schools to a non-profit known as Nashville Public Television (with the callsign reflecting their management).