Will I have issues in summer with 120v outlets sharing a double pole breaker with my 240v a/c outlet?
It's fine; see what Ed says.  What Ed is saying is that a circuit serving 120V loads on both legs and also 240V loads is perfectly fine, as long as the circuit breaker has &quot;common trip&quot;.  That's so if 120V loads trip one leg of the breaker, the whole circuit gets knocked out - if you left the other leg energized, power would leak into the tripped leg via the 240V loads).
You need to look at how much energy the TV, internet and sound bar take. Most people have no earthly idea how much energy devices take, so just read their labels/nameplates.  If necessary, skill up on what amps, watts and VA are.
And after that, take a hard look at those air conditioners.  Nowadays air conditioners are so efficient that they don't need 240V anymore.  So I would take a hard look at the SEER numbers of your existing A/C vs new ones, and work out the energy costs of each.  Hopefully you are not buying yourself new air conditioners every year, but giving the money to the power company instead of the appliance store.