Re: Is it possibel
well, definitely there will be losses but the requirement will be fullfiled, as an example lets talk about the television as you said, now a television has a step up transformer which converts the low voltage 110/220 VAC to about 25000 VAC but for this high voltage output it requires a lot of current at input considering that it required about 50Amps, so now at output we'll be getting 25000 VAC but a very few current Amps, this high voltage is used by the Electron Gun of the picture tube to bombard electrons of high voltage over the screen, now let us modify the example by adding a step down transformer at the output of step up transformer, now that 25000 VAC will again convert to a low voltage let say 110/220 VAC now that high voltage did had a lot of power in it so after conversion that power have taken the form of current now the output of the step down transformer will being having low voltage but high current now ideally it should be 50 Amps again but due to transformer losses in real world we won't get exactly 110/220 VAC or 50 Amps, now this is the reason we always have equipments is some +-some% loss ratings.
Best Regards