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

Not completely......the side sofa can extend till the centre of two doors and then the lower table comes, still allowing a generous space of one side sliding door opening to outwards....the doors can slide anyways which is majorly for viewing purpose and do you really need that large excess to opening...i was just curious....the glass door looks like 5 feet so you will be left with 3 feet of opening that is equal to any generous door size.....is there any major use of balcony except for vegetation and small gatherings which could still happen with the 3 feet opening........

Greetings from Dream Design, You can take the wooden paneling design It's in Trend currently or use the simple wooden design