1.Present perfect tense: "have significantly contributed" uses the present perfect tense to indicate an action that has occurred at an unspecified time before now, showing its relevance to the present situation.
2.Noun phrase as subject: "The convenience they offer" serves as the subject of the sentence, using a complex noun phrase to describe a key factor, enhancing the depth and complexity of the expression.
3.Infinitive phrase as adverb: "to adhere to specific showtimes" uses an infinitive phrase as an adverb to describe the necessity or requirement, adding complexity to the sentence.
4.Adjective phrase as a postmodifier: "cost-effectiveness of subscription models" uses an adjective phrase as a postmodifier to modify "subscription models," adding descriptive power and complexity to the sentence.