Perhaps, I thought your complaint was not finding enough "4K" (not a term I like much).

If it's about finding 1440p that'd mainly be because it's not a common broadcast format to the best of my knowledge - I just don't see it about much.

Articles such as: https://en.wikipedia.org/wiki/4K_resolution

don't mention it as a broadcast format, and articles that are specific to 1440p: https://en.wikipedia.org/wiki/1440p

have it as :

    As a graphics display resolution between 1080p and 4K, Quad HD is regularly used in smartphone displays, and for computer and console gaming.