In Jainism there isn’t a fixed amount of karma that gets wiped out by a single act like not watching TV. Karma is accumulated (influxed) through thoughts, speech, and actions, and it is shed over time mainly through disciplined practice and self-control.

What happens when you avoid watching TV (or reduce other worldly pleasures):

• It helps reduce inflow of karmic particles (samvara) by lessening attachment, passions, and frivolous activities.
• Over time, consistent restraint supports gradual shedding of karma (nirjara) as you engage more in spiritual practices.

Key ideas you can focus on:

• Virakti and self-restraint: cultivate less craving for entertainment and convenience.
• Samayika (meditation with equanimity), right conduct, and gentle speech help minimize new karmic inflow.
• Non-violence (ahimsa), truth, and cleanliness of thought and action support purification.

Bottom line: not watching TV is a step toward reducing future karma accumulation and supports the path to purification, but there isn’t a specific “amount wiped out” fixed to that single act. Karma purifies through ongoing mindful living and disciplined practice.