You can do all of this piecemeal, so a better way to ask this question would be “what do I want to be left with”? Otherwise we don’t know what is important to you and cannot provide good advice.
Currently I use Dish Network with their cheapest HD broadcast package, Comcast for internet, Vonage for land line service and Netflix streaming through Roku and DVD delivery. It is probably around $150 in total.
If it weren’t for working from home I wouldn’t even bother with a land line, and did without for many years without missing it at all. Cellular service is good enough for the number of calls I make.
From a TV perspective we are probably quite close to not needing Dish Network, since the only thing we seem to use it for are background noise type shows such as the Food Channel. But you probably wouldn’t want to get rid of this or Cable if watching the latest shows on a regular basis was important to you. On the other hand, Amazon on the Roku rents shows like The Office for $2, so if you only watched one or two shows it would probably be cheaper to buy them on a pay-per-view basis instead.