If you are on one of the "Big" bundles then TV is an integral part, & you cannot drop the service without renegtiating the other services in your package. Dropping a service loses any discount that service attracts, so while you will save money, you will also lose discount on the others.
Everything depends on individual circumstances, so give Retentions a call (150 option 4 then 5) & see whats on offer.
Cable customer since 1993. Services: FH TV, Sky Sports & Movies (2xV6), Talk Anytime Phone, VIVID 350, Virgin PAYG Mobile