Ludwig Wittgenstein suggested the idea of "family resemblances" in his philosophical investigations to describe the existence of concepts that depend on the presence of their incomplete and overlapping similarities to be comprehended. For instance, we understand "brother" as similar to "sister" in their filial relation to "parents" yet as different in their sexual relations to "mother" and "father". Although more concerned with the use of everyday language games, Wittgenstein's idea may be applied to use of everyday media, such as Home Video and Domestic Television - we trace roots to kinship, ties relations among its members.
Television shares a recognised likeness, particularly at home, where TV portrays everyday life in amateur production - video and television mediate, and themselves are mediated by notions of family - using media to represent family relations to ourselves - we also use family relations to represent these medias to each other.
(From reading, There's no place like Home Video)