6 feet according to this website http://www.thehighdefinitionstore.com/TV-Viewing-Distance-s/79.htm

Hi Nikita, First and farmost, you have very beautifull coushion on sofa, from where you buy it? You can check the videos of Small budget Big makover first session series in youtube. In One such house in Gujarat, Muninder and Bishakha coloured the old sofa set with whtie (The sofa is like yours) and changed the centre table. Interestingly, the family also had your kind of sofa set and they also want some modern style. The architect duo did not changed the sofa, just changed the colour. Yes I found it in youtube. it is the house of Setu Upadhyay. the link is https://www.youtube.com/watch?v=85GNhyLeVnM Another suggestion is that you have many tables on the room. You can drop few chairs and opt for a single centre table

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Hi Garima, i would suggest that you add a picture of your sofa so that houzers in Delhi can help you better with some advice. Take a few angles of the sofa and the room where the sofa is in as well.