ITU-R BT.1886 defines the reference electro-optical transfer function (EOTF / EOCF) for CRT and LCD displays used in HDTV studio production.
It was made in an effort to officially specify and standardise CRT EOCF and thus adopts a gamma of 2.4.
It should be used on HDTV reference mastering displays and is usually associated with BT.709 opto-electrical transfer function (OETF / OECF) that HDTV cameras adopts. The combination of both produces an overall colour imaging system gamma (end-to-end gamma) of 1.2 which is suitable for dim / very dim viewing conditions such as when you are watching television.
Considering the above, BT.1886 is indeed defined for video applications. It has a stronger gamma than sRGB EOCF (2.2) which is dedicated for desktop graphics applications.
Theoretically you should not use BT.1886 for image editing tasks that target desktop graphics but sRGB EOCF.