| Callsign: | CKSH-DT |
| Branding: | ICI Estrie |
| Digital: | 13 (VHF) |
| Virtual: | 9.1 |
| Location: | Sherbrooke, Quebec |
| Country: | Canada |
| Callsign Meaning: | CK SHerbrooke |
| Former Callsigns: | CKSH-TV (1974–2011) |
| Former Channel Numbers: | Analogue: 9 (VHF, 1974–2011) |
| Owner: | Société Radio-Canada |
| Erp: | 1.5 kW |
| Haat: | 585.90NaN0 |
| Licensing Authority: | CRTC |
CKSH-DT, virtual and VHF digital channel 9, branded on-air as ICI Estrie, is an Ici Radio-Canada Télé owned-and-operated station licensed to Sherbrooke, Quebec, Canada and serving the Estrie region. The station is owned by the Canadian Broadcasting Corporation (known in French as Société Radio-Canada). CKSH-DT's studios are located on Rue King Ouest in Sherbrooke, and its transmitter is located in Orford. On cable, the station is available on Vidéotron channel 10 and in high definition on digital channel 602. On satellite, it is carried on Bell Satellite TV channel 108 and in high definition on channel 1820.
The station first signed on the air on September 19, 1974. As a privately owned station, CKSH basically functioned as a semi-satellite of CBFT (channel 2) in Montreal due to not having alternative non-network sources of programming available. After several years, CKSH began airing its own local news and a few programs not carried by CBFT. The station had been owned directly by Cogeco prior to the latter's majority acquisition of the TQS network (later V, now Noovo), to which Cogeco contributed its existing local stations. Radio-Canada took editorial control of the station's news programming in 2002, although it currently shares a studio with its former sister station CFKS-DT (channel 30).
CKSH and TVA owned-and-operated station CHLT-DT (channel 7) in Sherbrooke are seen on some cable systems in Northern New England, serving the French American community. They serve as a vital link to the Québécois culture in these communities. Some parts of Vermont and New Hampshire can also pick up their signals over the air.
In September 2007, Radio-Canada announced that it would not renew its affiliation agreement with its three Cogeco-owned affiliates — CKSH, CKTM-TV in Trois-Rivières and CKTV-TV in Saguenay — after their then-current agreement expired in August 2008. An application to directly acquire the station was filed by Radio-Canada on April 25, 2008, concurrently with Cogeco's proposed sale of TQS to Remstar Corporation.[1] The transaction was approved by the CRTC on June 26, 2008.[2]
After the analogue television shutdown and digital conversion, which took place on August 31, 2011,[3] CKSH has shut down its analogue transmitter at midnight on September 1, 2011, and started digital broadcasts on its old analogue channel number, 9. However, through the use of PSIP, digital television receivers display CKSH's virtual channel as 9.1.