(a) Nothing in this chapter shall apply to the owner or employees of a regularly published newspaper, magazine, or telephone directory, or broadcast station, or billboard, wherein in any advertisement in violation of this chapter is published or disseminated, unless it is established that the owner or employees of the advertising medium have knowledge of the false, deceptive, or misleading acts or practices declared to be unlawful by this chapter, or had a direct or substantial financial interest or commission in the sale or distribution of the unlawfully advertised goods or service. Financial interest as used in this section relates to an expectation of financial reward which would be the direct result of such advertisement.

(b) Nothing in this chapter shall apply to acts or practices authorized under specific rules or regulations promulgated by the Federal Trade Commission under Section 5(a)(1) of the Federal Trade Commission Act (15 U.S.C.A. 45(a)(1)). The provisions of this chapter do apply to any act or practice prohibited or not specifically authorized by a rule or regulation of the Federal Trade Commission. An act or practice is not specifically authorized if no rule or regulation has been issued on the act or practice.