Rabbit and Carrot

I got this joke from an undergraduate student recently, there are few more, unfortunately, due to age is catching up, I can only remember this completely and perfectly.

There are rabbit and carrot, why is the rabbit not able to eat the carrot?
...
Because the carrot is a fake.

Now, the carrot is a real carrot, why is the rabbit still not able to eat the carrot?
...
Because now, the rabbit is a fake.

Okay, both are real rabbit and carrot now, why again is the rabbit not able to eat the carrrot?
...
Because the carrot is inside a television.

Lastly, both are real rabbit and carrot, both are inside a television, yet the rabbit is still not able to eat the carrot, why?
...
Because both on different channels.