Hi,
You won't be able too see the transmitted signal with an integrated receiver, since they strip all leading AGC-adjust pulses and remove the carrier wave.
If you've got an old PC with a parallel port or an oldfashioned game port, bootable into DOS, you can use an IR-transistor and a resistor to read the signal (I have done that with carrier waves up to 455 kHz w. great success) and a small program to time the signal.
Or... You could try Googling your TV etc. and get the codes without soldering and coding.