This document summarizes the history and evolution of several key media regulatory bodies in the UK: OFCOM, BBFC, PEGI, PCC, and IPSO. It outlines the dates when each organization was established in response to technological or social changes, and highlights some of their past practices and regulatory milestones over time as they adapted to new media landscapes and public expectations around protecting audiences. The organizations were established at different times but generally took on a converged regulatory role as communication technologies evolved.