Zenith Console

[Console User]

My 1991 Zenith Console is currently in a room where it hasn't been getting used much lately. I unplug it and disconnect the antenna cable for lighting protection. I decided to plug it in today and watch it for awhile. When I turned it on it had more of a pop noise than it use to and also caused qutie a bit of sparks on the end plug in the power strip. Also, thought I could see a reflection of a flash inside the cabinet. When I turned it on it came on and looked okay except it had a crackly noise and the corners of the picture tube seemed to like spark. Does any one know what this is and what is causing it? To me it seems like it is buidling up a high electrical charge when its disconnected and not in use? Also, in the background of the picture that you are viewing there seems to be quite a bit of wavy lines in the pictrue scence.

Thank You.