“Post-TV” refers to the closure of a period of time with a specific mode in which watching & interacting with television was entirely exclusive. Convergence focuses on the capability of having multi services on one platform or device, or utilization of every service on several platforms and devices. Now with democratization of production and distribution of videos and Internet Protocol TV, convergence has stepped into a new ground. In the Post-TV era, there are industrial changes happening in the nature of the watching devices, production methods, and broadcasting systems which leads to the emergence of a new TV economy. The experience of watching television on a single device is in the detaching phase, where with the help of a ubiquitous, higher bandwidth Internet, people regardless of their location can be always online and have access to the sites and watch their favorite series and television programs.This research is conducted through a descriptive - analytic method with the help of library documents, in order to answer the question that how competent are the previous theories  for theorizing about television as an evolving medium? In addition to that the research tries to specify what theoretical patterns can be applied in regard with interpreting & describing television in production, distribution and audience? Finally, the article comes to this conclusion: Now with the accomplishment of convergence in media and the gradual diminishing of control on the content, a wide spectrum of economical, political, social and cultural effects on societies would take place-specially on television- in relation to communication system.
A comparative review on the opinions of theoreticians of television studies can shed light to understand televisions transformations in the era of media convergence and opens new perspectives to comprehend the Post-TV for indigenous television researchers.