Certain foreign advertising expenses

No deduction shall be allowed under subsection (a) for any expenses of an advertisement carried by a foreign broadcast undertaking and directed primarily to a market in the United States. This paragraph shall apply only to foreign broadcast undertakings located in a country which denies a similar deduction for the cost of advertising directed primarily to a market in the foreign country when placed with a United States broadcast undertaking.

For purposes of paragraph (1), the term “broadcast undertaking” includes (but is not limited to) radio and television stations.