If I got rid of my dvd recorder with built in freeview can U get like a NOW TV box that has a dvd/ blue ray player (so can play dvds) on it or would I need a separate dvd player with an entertainment box like that? As wanna step into the 21st century with one of these entertainment boxs but just just thinking what can I do or how can I still watch my old dvds and Blu-ray's

I use a Sony PS3 that I paid £50 for a used one from Game.
Does all those things you ask for. Couple that with a Remote Control and you're sorted.