Regional sports networks are generally among the most expensive channels carried by cable television providers, due to the expense of rights to the local sports they carry; this higher subscriber fees received by television providers through retransmission consent carriage agreements coupled with percentages of other forms of revenue are used to pay local and regional teams for the right to broadcast their games. A typical RSN, , carries a monthly retransmission fee of $2 to $3 per subscriber, lower than the rates providers charge to carry ESPN and premium channels but higher than the rates for other cable networks. These high prices are supported by demand for the often-popular local sports teams they carry (particularly those that are member franchises of larger sports leagues such as Major League Baseball, the National Basketball Association and the National Hockey League, as well as college teams that have large and loyal fanbases); carriage disputes between distributors and RSNs are often controversial and protracted. The expense of the per subscriber rate led some major providers such as Charter Spectrum and Verizon FiOS to begin incorporating a fixed "regional sports network fee" as a separate surcharge within its billing statements as early as 2013.