The presentation of more than one medium. Strictly speaking TV is multimedia (if you have the sound tuned up). More typically it is pictures (moving and still), sound and often text combined in an interactive environment. This implies the use of computers and the Internet. One of the first applications was in education; now it is commonly seen at home via the Internet or DVDs.
Multimedia has a wide meaning. Another example is in the production of material which is published in many forms. For example pictures from television productions can be transferred to print for listings magazines, to EPGs and to advertising. Such transfers are commonly handled through network connections.