It is better to build a Home Theater system by integrating suitable TV, BD/DVD player, A/V receiver, Speakers, Subwoofer etc from different companies.
In my experience companies making A/V receivers are not making great speakers, they focus on A/V receivers. Same with case of companies making TV, BD player etc. I am not aware of a company which makes great products in all these areas.
If you are looking for a BD/DVD player + A/V receiver + speakers + subwoofer, 20k won't be enough.
You may go for a BD/DVD Player + Onkyo 3400 setup if you can increase your budget.