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WXXI logo 2 color by.svg
Rochester, New York
United States
ChannelsDigital: 22 (UHF)
Virtual: 21 (PSIP)
SloganGo public.
Affiliations21.1: PBS (1970–present)
21.2: World
21.3: Create
21.4: PBS Kids
22.7: Classical 91.5
(WXXI Readout Radio on SAP)
OwnerWXXI Public Broadcasting Council
First air date
September 6, 1966 (54 years ago) (1966-09-06)
Former call signs
WXXI (1966-1984)
Former channel number(s)
21 (UHF, 1966–2009)
16 (UHF, 2003–2019)
NET (1966–1970)
Call sign meaning
XXI = Roman numeral 21 (virtual channel)
Technical information
Licensing authority
Facility ID57274
ERP195 kW (STA)
273 kW (CP)
HAAT132.7 m (435 ft) (STA)
152 m (499 ft) (CP)
Transmitter coordinates43°8′7″N 77°35′2″W / 43.13528°N 77.58389°W / 43.13528; -77.58389
Public license information

WXXI-TV, virtual channel 21 (UHF digital channel 22), is a Public Broadcasting Service (PBS) member television station licensed to Rochester, New York, United States. Owned by the WXXI Public Broadcasting Council, it is a sister station of National Public Radio (NPR) members WXXI (1370 AM) and WXXI-FM (91.5). The three outlets share studios at 280 State Street near downtown Rochester; WXXI-TV's transmitter is located on Pinnacle Hill on the border between Rochester and Brighton.

Digital television[edit]

Digital channels[edit]

WXXI-TV entered the digital era in September 2003 when it signed on with Rochester's first full-power digital television signal.

The station's digital signal is multiplexed:

Channel Video Aspect PSIP Short Name Programming[1]
21.1 1080i 16:9 WXXI-HD Main WXXI-TV programming / PBS
21.2 480i 4:3 WXXI-W World
21.3 WXXI-C Create
21.4 WXXI-K PBS Kids
22.7 WXXI-FM Classical 91.5
(WXXI Readout Radio is on the subchannel's SAP)

Channel 21-4, now PBS Kids since February 1, 2016, was originally a digital standard definition simulcast of WXXI-TV's analog signal but is not currently transmitting, as 21-1 is identical.

Analog-to-digital conversion[edit]

WXXI-TV discontinued regular programming on its analog signal, over UHF channel 21, on June 12, 2009, the official date in which full-power television stations in the United States transitioned from analog to digital broadcasts under federal mandate. The station's digital signal remained on its pre-transition UHF channel 16.[2] Through the use of PSIP, digital television receivers display the station's virtual channel as its former UHF analog channel 21.

As part of the SAFER Act,[3] WXXI-TV kept its analog signal on the air until July 10 to inform viewers of the digital television transition through a loop of public service announcements from the National Association of Broadcasters. WXXI-TV had been awarded a $202,498 federal contract for an outreach initiative to help Rochester's over-the-air viewers prepare for the digital transition.[4]


National productions[edit]

WXXI-TV's national public television productions include A Warrior in Two Worlds, Echoes from the Ancients, Out of the Fire, Albert Paley: Man of Steel and Flight to Freedom. WXXI-TV also produced Assignment: The World, a weekly current-events program for schools, which aired on approximately 100 public television stations nationwide, and was the nation's longest-running instructional television program. Due to funding cuts, it was canceled and its last episode aired on May 23, 2013.

Former programming[edit]

Headquarters in Rochester, New York

ThinkBright, broadcast from 6 p.m. to 6 a.m. on 21-3 until the digital transition.


  1. ^ RabbitEars TV Query for WXXI
  2. ^ "DTV Tentative Channel Designations for the First and the Second Rounds" (PDF). Retrieved 2012-03-24.
  3. ^ "UPDATED List of Participants in the Analog Nightlight Program" (PDF). Federal Communications Commission. June 12, 2009. Retrieved June 4, 2012.
  4. ^ http://interactive.wxxi.org/highlights/wxxi-awarded-digital-television-grant

External links[edit]