simonbrenner.org

I own a Dreambox DM 800 HD which is capable of sending messages to the TV via the provided web interface. If you don't want to make all the mouse clicks and wait all the time until everything is loaded, just type into your browser address line:

http://ip_to_your_dreambox/web/message?text=somemessage&type=0&timeout=5

text=somemessage is the text to send

type=0 refers to the type of the message (info, warning...)

timeout=5 causes the message to be displayed for 5 seconds