Sky Investigation launched on 1 July 2021 with programming such as The Equalizer, Unforgettable, The Blacklist, Coroner, Law & Order, Law & Order: SVU, Bull, Private Eyes, Elementary and NCIS. References External links Sky Witness at sky.com Sky Investigation HD su Sky: 114 | Sky Sky Investigation Sky television channels 2018 establishments in the United Kingdom English-language television stations in the United Kingdom Television channels in the United Kingdom Television channels and stations established in 2018