Pay or subscription television (STY) is a means of providing additional and specialized programming for a fee. The FCC has never adopted an official definition of subscription television by cable, but has stated· that pay cable .is "akin to" a per program or per channel charge above the normal monthly Cable TV subscription fee.
Theodore S. Ledbetter & Susan C. Greene,
What is Pay Television,
Yale Rev. L. & Soc. Action
Available at: https://digitalcommons.law.yale.edu/yrlsa/vol2/iss3/3