(based on the 1980 decennial census of population
taken by the Secretary of Commerce), the number of miles shall be 20
miles."

A "distant signal equivalent" is the value assigned to the secondary
transmission of any nonnetwork television programing carried by a cable
system in whole or in part beyond the local service area of the primary
transmitter of such programing. It is computed by assigning a value of
one to each independent station and a value of one-quarter to each
network station and noncommercial educational station for the
nonnetwork programing so carried pursuant to the rules, regulations,
and authorizations of the Federal Communications Commission. The
foregoing values for independent, network, and noncommercial
educational stations are subject, however, to the following exceptions
and limitations. Where the rules and regulations of the Federal
Communications Commission require a cable system to omit the further
transmission of a particular program and such rules and regulations
also permit the substitution of another program embodying a performance
or display of a work in place of the omitted transmission, or where
such rules and regulations in effect on the date of enactment of this
Act permit a cable system, at its election, to effect such deletion and
substitution of a non-live program or to carry additional programs not
transmitted by primary transmitters within whose local service area the
cable system is located, no value shall be assigned for the substituted
or additional program; where the rules, regulations, or authorizations
of the Federal Communications Commission in effect on the date of
enactment of this Act permit a cable system, at its election, to omit
the further transmission of a particular program and such rules,
regulations, or authorizations also permit the substitution of another
program embodying a performance or display of a work in place of the
omitted transmission, the value assigned for the substituted or
additional program shall be, in the case of a live program, the value
of one full distant signal equivalent multiplied by a fraction that has
as its numerator the number of days in the year in which such
substitution occurs and as its denominator the number of days in the
year. In the case of a station carried pursuant to the late-night or
specialty programing rules of the Federal Communications Commission, or
a station carried on a part-time basis where full-time carriage