Consumption of bandwidth hungry applications like video streaming over mobile networks is on the rise due to the success of ubiquitous devices like smart phones and tablets. In order to meet future demands, enhanced multimedia broadcast and multicast services (eMBMS) was defined in the Release 9 specification of Long Term Evolution (LTE). This paper presents the physical aspects of eMBMS in an easy-to-read manner to not only enable the reader to understand the technical details but also appreciate the design decisions made for eMBMS.