Hey there, to do that you need to do a line trace when pressing each of the mouse buttons, if the traace hits then you need to check if it’s a TV blueprint, if it is then for LMB you check if the tv is on, if it is then call Next Channel function, if its not, then you call Turn On function. For RMB you check if it’s on, if it is then you can Turn Off function. These functions that i mentioned you need to create them in the TV blueprint and do the corresponding logic.