How to make universal remote controller?
As you've stated in your question, the TSOP-15 is a receiver. That means it detects infrared signals rather than sending them out.

To make a remote control with that code, you need a simple infrared light emitting diode.

It's also important to note that you need to know what signals to send. Different TVs will have different IR codes, depending on the manufacturer. That information can be detected using your receiver module along with your TV's proper remote control.