Actor Larry Hagman, best known for playing J R Ewing in Dallas, will be remembered in two private services in Dallas and Los Angeles.
He died on Friday 23 November, aged 81, following complications from cancer.
In 1995, he underwent a transplant after a malignant tumour was found on his liver, three years after he was diagnosed with cirrhosis of the liver.
Season two of the new series of Dallas is currently in production and will be re-written to reflect his death.
John Castonia, the star's personal manager, has revealed the private, invitation-only memorial services this week will celebrate Hagman's life but he would not provide details.
Hagman shot to prominence playing a scheming oil tycoon in the TV drama, which first aired in 1978 and was resurrected in the summer, more than 20 years after the original finished.
In the 1980s, Dallas was one of the CBS network's top-rated programmes and was watched by an estimated 300 million people in 57 countries.
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