I just thought of what the media people would do if they were in another service industry. Lets take for example, running water. Lets pretend that Sony gets into the water business.
If they were in the running water business, they would probably be in other businesses as well. Like Sony does content, hardware, etc. So you could get a Sony sink and faucet with your Sony water.
The difference is that you would have to use your Sony sink, or Sony licensed sink to drink your Sony water. The Sony water would then have to be protected so that a Panasonic sink would not be able to dispense of the Sony water. How would they do that?
DRM. Yes, they would add a poison to the water, at great expense and danger to the public. The water would kill you in seconds of ingestion without the aid of a Sony sink to remove the poison.
Of course, you could license the rights to drink Sony's poisoned water, but all of the fittings would be nonstandard. You would have to get special tools to work on the sink. Oh, and Sony water would never just go through PVC or copper pipe. The Sony water would need an end to end transport system.
Thanks to "Hackstraw", a commentor on Slashdot.org.