TV-watching, e.g

• Amusements
• Philately and golf
• Chess, bridge, etc.
• Diversions ... as hinted at by the ends of 17-, 34- and 52-Across
• Diversions
• Shuffleboard, canasta, etc
• Hobbies
• Dad's track records?
• Entertainments

Wiktionary Word definitions in Wiktionary
n. (plural of pastime English)