While any court case, even a farce, may be more expensive than you want to bear, there is nothing to stop you from immediately removing the app from the store the moment they actually file.
What would that accomplish? He would still have in hand a summons to court and a lawsuit filed against him and whatever damages they felt were owed. Assuming they are unwilling to settle, now he has to go to court to defend himself, or risk getting a summary judgement against him.
You can ignore (as a calculated risk) letters claiming you're infringing. Ignoring an actual notice that a suit has been filed against you is another thing altogether.
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OK, at the time of filing, he won't have a summons, but he still has to Answer the Complaints filed.
Right, in fact, I'm suggesting that he not ignore a notice of a suit, and instead remove the app from the store. There may be a case for stopping him from continuing to sell the app, and by removing it, he eliminates that case. The case for "damages" done by selling the app up until the date of the lawsuit is a different case, and I believe a more difficult case to make than the "he's using our trademarks" case.
Since anyone can get these same broadcasts via the internet, that he is letting people get, via the internet, it is kinda hard to say he's damaged CBC's ability to distribute the broadcasts, via the internet, which they distribute for free. He can't have cut into any of their sales... so the claim that he's damaged them in some way becomes kinda tenuous.
What would that accomplish? He would still have in hand a summons to court and a lawsuit filed against him and whatever damages they felt were owed. Assuming they are unwilling to settle, now he has to go to court to defend himself, or risk getting a summary judgement against him.
You can ignore (as a calculated risk) letters claiming you're infringing. Ignoring an actual notice that a suit has been filed against you is another thing altogether.
[edit] OK, at the time of filing, he won't have a summons, but he still has to Answer the Complaints filed.