Previous research has demonstrated that formulaic sequences (FSs), including such types as collocations, idioms, or phrasal verbs, are ubiquitous and play an important role in second/foreign language (L2) proficiency. However, FSs can pose significant challenges for L2 learners, especially those in contexts where there is limited exposure to L2 input. For this reason, a significant amount of research has investigated various ways to improve L2 learners' knowledge of FSs. Given the limited classroom time for teaching FSs deliberately, recent studies have examined whether FSs can be incidentally picked up from different modes of input, such as reading, listening, or watching TV. In particular, being rich in FSs comparable to everyday speech, authentic TV has been gaining traction in L2 research as a potential source of input for learning FSs. This chapter presents a narrative review on learning FSs from authentic TV, aiming to address the following two primary issues: the extent to which FSs can be learned from authentic TV and the factors that might affect the learning of FSs from this type of resource. In addition, recommendations for practice and suggestions for future research on the topic will also be provided. [For the complete volume, "Foreign Language Learning from Audiovisual Input: The Role of Original Version Television. Educational Linguistics. Volume 66," see ED676342.]