Well read, you can watch a version ASCII of the film Star Wars Episode IV from her window lineς εντολών του υπολογιστή σας.
Just open Command Prompt and run the command telnet towel.blinkenlights.nl
The movie will start right away. This is not a terribly productive use of the command line, nor is it really a command line trick or any command but it is definitely fun!
Note: if the mode telnet is not enabled on your system, the above command will not work. You can enable the feature from Control Panel / Programs and Features / Add or remove features of Windows.
If you still don't want to enable Telnet to watch the ASCII movie, you can watch it from the program your browser here.