This should be long enough: XM (NSDQ: XMSR) and Sirius (NSDQ: SIRI) have extended their merger agreement to May 1, as the clock continues to tick on regulatory approval. Both companies have said they expect approval in the near future, but the agreement had been set to expire tomorrow, so they had no choice but to extend. Last week, the agreement to merge turned a year old, a year in which numerous rumors of an “imminent approval” were proven wrong. Release.

• Earnings: XM Satellite Continues to Narrow Net Losses; Revs Gain 20 Percent
• Earnings: Sirius Q4 Revs Up 29 Percent; Net Loss Narrows; Still Waiting On Merger Approval
• Updated: Sirius Shareholders Approve Merger With XM; XM Vote to Come