Comcast's (CMCSA) Q1 results will likely demonstrate a persistently challenging environment, with revenue and earnings before interest, taxes, depreciation, and amortization potentially declining year over year, UBS said in a note emailed Tuesday.

UBS said it expects Q1 revenue to decline 1.2% and Ebitda to fall 1.8%, versus Street estimates of 0.5% and 1.9% decline, respectively.

The investment firm expects "stable" connectivity Ebitda, or a 0.2% growth, in the quarter as it projects 150,000 broadband subscriber losses and average revenue per user at the low-end of the company's 3% to 4% growth target, according to the note.

In the content business, UBS estimates revenue to fall 2% and Ebitda to decline 14% in Q1 as lower Parks and TV Media offsets improved Peacock losses.

UBS expects the company to post 297,000 wireless additions in mobile subscribers, more than the 289,000 additions posted a year earlier, and to post video subscriber losses at 432,000 versus 488,000 losses a year earlier.

UBS maintained its neutral rating on the stock and lowered its price target by $7 to $40.

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