Request for Comments: 2838                         WebTV Networks, Inc.
widely-implemented URI scheme to refer to such broadcasts.
Communications Commission in the United States) and are world unique.
broadcasters use these sorts of identifiers, rather than call signs.
using DNS.  Thus, using the terms as defined in RFC 2396, the "tv:"
identifiers to specific channel numbers or directly to frequencies.
country, this form is particularly ill-suited to use on the Internet.
used directly as broadcast identifiers, as in "tv:abc" and "tv:kron".
The definitions of alpha and alphanum are from [RFC 2396].
definition of hostname in RFC 2396, and is case-insensitive.
Thomas, Harald Alvestrand, and Larry Masinter.
to be incurred to the viewer in some instances (e.g., "pay-per-view"
may incur costs to the user.
allocation of international call sign series."