TV static stands for noise without meaning, a channel with nothing on it. Dream books read it as confusion, a lost connection, or a mind that needs a moment of blankness.
When this appeared in your dream, what were you feeling?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.