The most common reason why you hear the TV when it's not on is a result of auditory pareidolia, in which your brain misinterprets faint and repetitive sounds as familiar noises such as a TV, or auditory hallucinations, that can be associated with various conditions, which include sleep disorders or schizophrenia.
Auditory Pareidolia is a phenomenon that causes the brain to interpret indistinct, repetitive sounds as something that is familiar, like a TV.
With auditory pareidolia you may hear what sounds like a TV show or a conversation when the actual sound is just a faint hum or background noise.
It is a common experience and does not necessarily indicate a serious problem.
Auditory Hallucinations are also a perception of sounds that are not actually present and can also cause you to hear voices inside your head and can be a symptom of various conditions.
Hearing voices in your head is also called auditory hallucinations and they are actually a common experience and are not always a sign of a mental health issues.
Although if the voices you hear in your head are interfering with your life or are distressing to you, then you should seek help through therapy or let your doctor know.
Having high levels of anxiety or stress can also trigger auditory hallucinations and lack of sleep can also disrupt your brain activity and result in hearing of voices.
Certain medications which include both prescription medications and even recreational drugs can also result in auditory hallucinations or hearing of voices in your head as a side effect.
Even past trauma, including bullying or abuse can also be a factor in hearing voices in your head.
Hearing the voice of a loved one that has recently passed away is also a common experience.
And it's also normal to experience hypnagogic "falling asleep" or hypnopompic "waking up" hallucinations, which can also include hearing of voices.
Mental health conditions that can result in hearing of voices in your head include Schizophrenia, Psychosis and other conditions such as depression PTSD and schizoaffective disorder.
In rare cases brain tumors or lesions, migraines and even Parkinson's disease could cause you to hear voices in your head.
Hearing voices in your head is a key symptom of schizophrenia.
Hearing voices in your head can also occur in people with bipolar disorder and most particularly during manic episodes or depressive episodes.
Hearing voices in your head is also a common feature of psychosis, which can be a symptom of various mental health conditions.