I switched from U-verse to TWC about 1.5 yrs ago. When my '1 yr initial deal' was about to expire, TWC wrote to me saying they would extend the deal another year for a $10 increase. (from $85 to $95 incl taxes, no telephone, no movie/sports packages). That made TWC slightly better.
With Comcast offering to buy TWC, who knows what will happen if that succeeds. I have had Comcast, and they were much better than TWC. And no 'copy once' restrictions. But generally when a cableco takes over another cableco, the infrastructure that was bought dictates policies, at least for a while.