My blueish/greenish light is on all the time, that only means you have power connected to the TV, it turns to red when you turn on the TV and it's in the working mode. Sounds like the TV is not turning on, check batteries in the remote, or go to the TV and push the button on the TV and see if it will turn on from there. My TV is a 2019 model Jensen, other TV's could be different and probably are. I have a LG 24" TV that we used in another trailer and it is red when off and when you turn it on it goes to off, go figure.
trainman