Removing Main Image from Post Page and posting below video

Hi Guys! I need your help! I have HATCH layout on my website: http://www.konkrety.tv i i love this layout because is clean and easy to navigate . I have one little problem: is there any possible was to remove the “feature image”? What I mean is I would like the “future image” to be on the main page (www.konkrety.tv) but I dont want the “feature image” be on the other page i.e. ( http://konkrety.tv/ivo-widlak-premiera-2014/).
I really dont want to have the “feature image” on my pages and in that space i would like to place embed video from youtube. Can anybody can help me with this issue. Thank you in advance for all your help!

So now i found out that i can overright the main image from the post page by inserting code into “Theme Settings” :

.hentry .single-thumbnail {
display: none;
}

but now, unfortunately I can’t post anything below the embed video just like in this example on this post page: http://konkrety.tv/ivo-widlak-whac-a-mole-2014/
do any of you have a solution to this problem and can help me?
Below the embed from youtube video I would like to insert Social Sharing banner and also an add banner.

Thank you in advance for your help!