These are required plugins.
Redux Framework: You must need to Install This plugin.
BeTube Helper: You must need to install this plugin.
Video Thumbnails: You must need to install this plugin.
These are optional plugins.
1- Font Awesome 4 Menus : Its not required, But if you want to use icons in Menu then you need to install this plugin.
2- FV Player: If you want to upload custom (mp4) videos on your website and you want to play that on FV Player then you need to Install this plugin otherwise it will be played on WordPress default Player.
3- LayerSlider WP: If you want to use LayerSlider WP then you can install this otherwise leave this.
4- Nextend Facebook Connect: If you want to use login via Facebook then you need to install this plugin.
5- Nextend Google Connect: If you want to use login via Google+ then you need to install this plugin.
6- Nextend Twitter Connect: If you want to use login via Google+ then you need to install this plugin.
7- Dailymotion Auto Poster: If you want to auto import video from dailymotion then you can use this plugin otherwise leave it.