IPTV application modification.

Read carefully, answer the questions! I have almost completed project by my previous developer. EPG feature and in-app purchases feature remains. I am going to finish the project by end of this month. Looking for the right guy to complete the project. Regards! 1. What is EPG? 2. How to integrate EPG plugin to my app? 3. How to integrate in-app purchase feature to my app? 4. You will use DVB or XMLTV? 5. Why I have to choose you? 6. Describe what you know about the IPTV application, streaming services for that, EPG, in-app purchase. 7. How long days will you need for this job roughly?