TV speech is presented at faster rate than daily conversation speech; many researches show that understanding become worse with increasing in the speed of speech delivery. Problem might still persist even with hearing aids fitting.
Pros: fast solution
Cons: annoying others, not helpful in speech understanding.
Pros: Significantly improve in speech understanding.
Cons: Not available in some TV programs, especially news and live show. Elderly might find difficult to keep up with reading captioned text, or not enjoy watching TV as much when they have to read.
Pros: Transmit the sound directly from your TV to hearing aids, significantly improve in speech understanding. Easy to use.
Cons: Some setup needed to in first time, might be challenging for elderly. Extra cost involved.