tie-inn.

1934 in Webster's New Internat. Dict. Eng. Lang.

1941 W. Kozlenko 100 Non-Royalty Radio Plays 535/2 That's the tie in. He killed Tom and after that decided to really cripple the Dominion team so that we wouldn't have a chance at winning.

1949 M. Mead Male & Female vii. 152 The tie-in with birth can be close.

1965 Listener 10 June 875/1 The London studio tie-in with the pictures from America was also very successful, with John Tidmarsh getting lucid technical comments out of Geoffrey Pardoe at each stage of the operation.

1972 ‘T. Coe’ Don't lie to Me (1974) vii. 66 I didn't know the museum had a tie-in with City College.

1973 Black Panther 21 July 2/3 Could you say something about the tie-in of David Hilliard's case with Watergate?

1943 Amer. Notes & Queries July 54/2 The phrase ‘tie-in sales’ (referring to those whereby tradesmen are obliged to buy unwanted stock in order to get even a small amount of a scarce item) appears to have established itself..about the first week of June (1943).

1946 Sun (Baltimore) 8 Feb. 12/6 This [liquor] industry can put an immediate stop to tie-in selling.

1980 Times 13 Sept. 18/7 It was information from an individual ‘mole’, working temporarily in a discount store, that first alerted the National Consumer Council to..‘tie-in sales’ (a stipulation that a buyer must purchase part or all of his requirements of a second (tied) product from the supplier of a first (tying) product).

1949 Newsweek 28 Nov. 70/1 By next May, Paramount expects to have spent $1,000,000 calling attention to the show by way of..tie-ins with fashion designers and department stores who will make and sell women's clothes influenced by the ‘Minoan period’ costumes [in a film about Samson and Delilah].

1959 I. Ross Image Merchants ix. 149 Ryland [of NBC] also spends a good deal of time working up promotional tie-ins with manufacturers, department stores..and publications. It is a major coup when a national magazine can be persuaded to incorporate a TV plug in its own vast promotional outlay.

1962 Economist 10 Feb. 521/1 ‘Calories Don't Count’ has been offered to the public as a promotional tie-in to encourage the purchase of safflower oil.

1962 Publishers' Weekly 23 Apr. 43/1 Students show an interest in books which have been made into successful movies. Watch for these tie-ins.

1976 Publishers Weekly 29 Mar. 42/1 The paper edition of Ibsen's ‘Hedda Gabler and Other Plays’ even has a movie tie-in cover with a still from the recent Glenda Jackson film.

1981 Times Lit. Suppl. 17 Apr. 425/2 The 1970s was the decade of the ‘tie-in’—the almost simultaneous film of the novel, novel of the film, TV series of the novel.